đang tải bài tập bài
{"segment":[{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["2"],["18"]]],"list":[{"point":5,"width":50,"type_input":"","input_hint":["frac"],"ques":"H\u00e3y vi\u1ebft ph\u00e2n s\u1ed1 sau: <br\/> Hai ph\u1ea7n m\u01b0\u1eddi t\u00e1m:<div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> \u00dd ngh\u0129a t\u1eed s\u1ed1 v\u00e0 m\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 <\/b> <br\/> +) M\u1eabu s\u1ed1 cho bi\u1ebft \u0111\u01a1n v\u1ecb \u0111\u01b0\u1ee3c chia ra l\u00e0m m\u1ea5y ph\u1ea7n b\u1eb1ng nhau <br\/> +) T\u1eed s\u1ed1 cho bi\u1ebft s\u1ed1 ph\u1ea7n b\u1eb1ng nhau \u0111\u00e3 l\u1ea5y <br\/> $\\dfrac{a}{b}$ v\u1edbi a, b $\\in \\mathbb{Z}, b \\neq 0$ <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ph\u00e2n s\u1ed1 hai ph\u1ea7n m\u01b0\u1eddi t\u00e1m \u0111\u01b0\u1ee3c vi\u1ebft nh\u01b0 sau: $\\dfrac{2}{18}$ <br\/> Trong \u0111\u00f3 2 l\u00e0 t\u1eed s\u1ed1, 18 l\u00e0 m\u1eabu s\u1ed1"}]}],"id_ques":1401},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["14"],["100"]]],"list":[{"point":5,"width":50,"type_input":"","input_hint":["frac"],"ques":"H\u00e3y vi\u1ebft ph\u00e2n s\u1ed1 sau: <br\/> M\u01b0\u1eddi b\u1ed1n ph\u1ea7n tr\u0103m: <div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>","hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ph\u00e2n s\u1ed1 m\u01b0\u1eddi b\u1ed1n ph\u1ea7n tr\u0103m \u0111\u01b0\u1ee3c vi\u1ebft nh\u01b0 sau: $\\dfrac{14}{100}$ <br\/> Trong \u0111\u00f3 14 l\u00e0 t\u1eed s\u1ed1, 100 l\u00e0 m\u1eabu s\u1ed1 <br\/> <span class='basic_pink'> V\u1eady ph\u00e2n s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: $\\dfrac{14}{100}$ <\/span> "}]}],"id_ques":1402},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-3"],["8"]]],"list":[{"point":5,"width":50,"ques":"H\u00e3y vi\u1ebft ph\u00e9p chia sau \u0111\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1: <br\/> (-3) : 8 = <div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Trong m\u1ed9t ph\u00e9p chia th\u00ec: S\u1ed1 b\u1ecb chia ch\u00ednh l\u00e0 t\u1eed s\u1ed1, s\u1ed1 chia ch\u00ednh l\u00e0 m\u1eabu s\u1ed1 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ph\u00e9p chia (-3) : (8) \u0111\u01b0\u1ee3c vi\u1ebft \u0111\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 nh\u01b0 sau: <br\/> $(-3) : 8 = \\dfrac{-3}{8}$"}]}],"id_ques":1403},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-2"],["15"]]],"list":[{"point":5,"width":50,"type_input":"","input_hint":["frac"],"ques":"H\u00e3y vi\u1ebft ph\u00e9p chia sau \u0111\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1: <br\/> 2 : (-15) = <div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Trong m\u1ed9t ph\u00e9p chia th\u00ec: S\u1ed1 b\u1ecb chia ch\u00ednh l\u00e0 t\u1eed s\u1ed1, s\u1ed1 chia ch\u00ednh l\u00e0 m\u1eabu s\u1ed1 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ph\u00e9p chia 2 : (-15) \u0111\u01b0\u1ee3c vi\u1ebft \u0111\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 nh\u01b0 sau: <br\/> $2 : (-15) =\\dfrac{-2}{15}$ "}]}],"id_ques":1404},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/D631_D101.png' \/><\/center> <br\/> Ph\u1ea7n t\u00f4 m\u00e0u trong h\u00ecnh tr\u00ean bi\u1ec3u di\u1ec5n ph\u00e2n s\u1ed1 n\u00e0o sau \u0111\u00e2y?","select":["A. $\\dfrac{21}{25}$","B. $\\dfrac{4}{21}$","C. $\\dfrac{4}{25}$ ","D. $\\dfrac{21}{4}$"],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> T\u1eed s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 c\u1ea7n t\u00ecm ch\u00ednh l\u00e0 s\u1ed1 \u00f4 \u0111\u01b0\u1ee3c t\u00f4 m\u00e0u <br\/> M\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 \u0111\u00f3 ch\u00ednh l\u00e0 s\u1ed1 \u00f4 vu\u00f4ng \u0111\u01b0\u1ee3c chia ra <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> V\u00ec c\u00f3 4 \u00f4 \u0111\u01b0\u1ee3c t\u00f4 m\u00e0u n\u00ean t\u1eed s\u1ed1 l\u00e0 4 <br\/> H\u00ecnh vu\u00f4ng tr\u00ean \u0111\u01b0\u1ee3c chia ra 25 ph\u1ea7n b\u1eb1ng nhau n\u00ean m\u1eabu s\u1ed1 l\u00e0 25 <br\/> V\u1eady h\u00ecnh v\u1ebd tr\u00ean bi\u1ec3u di\u1ec5n ph\u00e2n s\u1ed1: $\\dfrac{4}{25}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. $\\dfrac{4}{25}$ <\/span>","column":2}]}],"id_ques":1405},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/D631_D102.png' \/><\/center> <br\/> Ph\u1ea7n t\u00f4 m\u00e0u trong h\u00ecnh tr\u00ean bi\u1ec3u di\u1ec5n ph\u00e2n s\u1ed1 n\u00e0o sau \u0111\u00e2y?","select":["A. $\\dfrac{2}{10}$","B. $\\dfrac{2}{8}$","C. $\\dfrac{6}{8}$ ","D. $\\dfrac{8}{2}$"],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> T\u1eed s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 c\u1ea7n t\u00ecm ch\u00ednh l\u00e0 s\u1ed1 \u00f4 \u0111\u01b0\u1ee3c t\u00f4 m\u00e0u <br\/> M\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 \u0111\u00f3 ch\u00ednh l\u00e0 s\u1ed1 ph\u1ea7n \u0111\u01b0\u1ee3c chia ra <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> V\u00ec c\u00f3 2 \u00f4 \u0111\u01b0\u1ee3c t\u00f4 m\u00e0u n\u00ean t\u1eed s\u1ed1 l\u00e0 2 <br\/> H\u00ecnh ng\u0169 gi\u00e1c tr\u00ean \u0111\u01b0\u1ee3c chia ra 10 ph\u1ea7n b\u1eb1ng nhau n\u00ean m\u1eabu s\u1ed1 l\u00e0 10 <br\/> V\u1eady h\u00ecnh v\u1ebd tr\u00ean bi\u1ec3u di\u1ec5n ph\u00e2n s\u1ed1: $\\dfrac{2}{10}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A. $\\dfrac{2}{10}$ <\/span>","column":2}]}],"id_ques":1406},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/4.jpg' \/><\/center> <br\/> Trong c\u00e1c c\u00e1ch vi\u1ebft sau c\u00e1ch vi\u1ebft n\u00e0o cho ta ph\u00e2n s\u1ed1?","select":["A. $\\dfrac{9,5}{11,5}$","B. $\\dfrac{-8}{0}$","C. $\\dfrac{7}{1}$ ","D. $\\dfrac{6}{0}$"],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> $\\dfrac{a}{b}$ \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t ph\u00e2n s\u1ed1 v\u1edbi a, b $\\in \\mathbb{Z}, b \\neq 0$ <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\dfrac{9,5}{11,5}$ c\u00f3 9,5 v\u00e0 11,5 $\\notin \\mathbb{Z}$ n\u00ean $\\dfrac{9,5}{11,5}$ kh\u00f4ng ph\u1ea3i ph\u00e2n s\u1ed1 <br\/> $\\dfrac{-8}{0}$ c\u00f3 m\u1eabu s\u1ed1 b\u1eb1ng kh\u00f4ng n\u00ean $\\dfrac{-8}{0}$ kh\u00f4ng ph\u1ea3i ph\u00e2n s\u1ed1 <br\/> $\\dfrac{7}{1}$ c\u00f3 7 v\u00e0 1 $\\in \\mathbb{Z}$ v\u00e0 m\u1eabu s\u1ed1 kh\u00e1c 0 n\u00ean $\\dfrac{7}{1}$ l\u00e0 ph\u00e2n s\u1ed1 <br\/> $\\dfrac{6}{0}$ c\u00f3 m\u1eabu s\u1ed1 b\u1eb1ng 0 n\u00ean $\\dfrac{6}{0}$ kh\u00f4ng ph\u1ea3i ph\u00e2n s\u1ed1 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. $\\dfrac{7}{1}$ <\/span>","column":2}]}],"id_ques":1407},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/4.jpg' \/><\/center> <br\/> Trong c\u00e1c c\u00e1ch vi\u1ebft sau c\u00e1ch vi\u1ebft n\u00e0o cho ta ph\u00e2n s\u1ed1?","select":["A. $\\dfrac{-4,1}{6}$","B. $\\dfrac{3}{-2}$","C. $\\dfrac{-1}{0}$ ","D. $\\dfrac{2,1}{-4}$"],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> $\\dfrac{a}{b}$ \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t ph\u00e2n s\u1ed1 v\u1edbi a, b $\\in \\mathbb{Z}, b \\neq 0$ <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\dfrac{-4,1}{6}$ c\u00f3 $-4,1$ $\\notin \\mathbb{Z}$ n\u00ean $\\dfrac{-4,1}{6}$ kh\u00f4ng ph\u1ea3i ph\u00e2n s\u1ed1 <br\/> $\\dfrac{3}{-2}$ c\u00f3 $3$ v\u00e0 $-2$ $\\in \\mathbb{Z}$ v\u00e0 m\u1eabu s\u1ed1 kh\u00e1c 0 n\u00ean $\\dfrac{3}{-2}$ l\u00e0 ph\u00e2n s\u1ed1 <br\/> $\\dfrac{-1}{0}$ m\u1eabu s\u1ed1 b\u1eb1ng 0 n\u00ean $\\dfrac{-1}{0}$ kh\u00f4ng ph\u1ea3i ph\u00e2n s\u1ed1 <br\/> $\\dfrac{2,1}{-4}$ c\u00f3 2,1 $\\notin \\mathbb{Z}$ n\u00ean $\\dfrac{2,1}{-4}$ kh\u00f4ng ph\u1ea3i ph\u00e2n s\u1ed1 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B. $\\dfrac{3}{-2}$ <\/span>","column":2}]}],"id_ques":1408},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/12.jpg' \/><\/center> <br\/> C\u00f3 b\u1ea1n n\u00f3i ph\u00e2n s\u1ed1 $\\dfrac{2}{5}$ b\u1eb1ng ph\u00e2n s\u1ed1 $\\dfrac{6}{15}$ <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG","B. SAI"],"hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau: Hai ph\u00e2n s\u1ed1 $\\dfrac{a}{b}$ v\u00e0 $\\dfrac{c}{d}$ g\u1ecdi l\u00e0 b\u1eb1ng nhau n\u1ebfu a . d = b . c","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> So s\u00e1nh t\u00edch 2 . 15 v\u00e0 5 . 6 <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t t\u00edch: 2 . 15 = 30 <br\/> 5 . 6 = 30 <br\/> V\u00ec 30 = 30 n\u00ean 2 . 15 = 5 . 6 <br\/> N\u00ean $\\dfrac{2}{5} = \\dfrac{6}{15}$ <br\/> <span class='basic_pink'> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0: \u0110\u00daNG <\/span>","column":2}]}],"id_ques":1409},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/12.jpg' \/><\/center> <br\/> C\u00f3 b\u1ea1n n\u00f3i ph\u00e2n s\u1ed1 $\\dfrac{1}{3}$ b\u1eb1ng ph\u00e2n s\u1ed1 $\\dfrac{3}{8}$ <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG","B. SAI"],"hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau: Hai ph\u00e2n s\u1ed1 $\\dfrac{a}{b}$ v\u00e0 $\\dfrac{c}{d}$ g\u1ecdi l\u00e0 b\u1eb1ng nhau n\u1ebfu a . d = b . c","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn: <\/span><br\/> So s\u00e1nh t\u00edch 1 . 8 v\u00e0 3 . 3 <br\/><\/span><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t t\u00edch: 1 . 8 = 8 <br\/> 3 . 3 = 9 <br\/> V\u00ec 8 $\\neq$ 9 n\u00ean 1 . 8 $\\neq$ 3 . 3 <br\/> N\u00ean $\\dfrac{1}{3} \\neq \\dfrac{3}{8}$ <br\/> <span class='basic_pink'> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0: SAI <\/span>","column":2}]}],"id_ques":1410},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["4"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"T\u00ecm s\u1ed1 nguy\u00ean y bi\u1ebft <br\/> $\\dfrac{y}{5} = \\dfrac{16}{20}$ <br\/> V\u1eady y = _input_","hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{y}{5} = \\dfrac{16}{20}$ khi y . 20 = 5 . 16 <br\/> T\u1eeb \u0111\u00f3 ta t\u00ecm \u0111\u01b0\u1ee3c y <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> $\\begin{align*} \\dfrac{y}{5} &= \\dfrac{16}{20} \\\\ y . 20 &= 5 . 16 \\\\ y . 20 &= 80 \\\\ y &= 80 : 20 \\\\ y &= 4 \\end{align*}$ <br\/> <span class='basic_pink'>V\u1eady y = 4 <\/span> "}]}],"id_ques":1411},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["7"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"T\u00ecm s\u1ed1 nguy\u00ean y bi\u1ebft <br\/> $\\dfrac{y}{10} = \\dfrac{42}{60}$ <br\/> V\u1eady y = _input_","hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{y}{10} = \\dfrac{42}{60}$ khi y . 60 = 42 . 10 <br\/> T\u1eeb \u0111\u00f3 ta t\u00ecm \u0111\u01b0\u1ee3c y <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> $\\begin{align*} \\dfrac{y}{10} &= \\dfrac{42}{60} \\\\ y . 60 &= 42 . 10 \\\\ y . 60 &= 420 \\\\ y &= 420 : 60 \\\\ y &= 7 \\end{align*}$ <br\/> <span class='basic_pink'>V\u1eady y = 7 <\/span> "}]}],"id_ques":1412},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["4"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y \u0111i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng <br\/> $\\dfrac{1}{8} = \\dfrac{\\FormInput[40][bl_elm_true basic_elm basic_blank basic_blank_part]{}}{32}$","hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> G\u1ecdi s\u1ed1 c\u1ea7n t\u00ecm l\u00e0 a <br\/> X\u00e9t t\u00edch: 1 . 32 = a . 8 <br\/> T\u1eeb \u0111\u00f3 t\u00ednh \u0111\u01b0\u1ee3c a <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> G\u1ecdi s\u1ed1 c\u1ea7n t\u00ecm l\u00e0 a <br\/> V\u00ec $\\dfrac{1}{8} = \\dfrac{a}{32}$ n\u00ean 1 . 32 = 8 . a <br\/> V\u00ec v\u1eady a = 1 . 32 : 8 = 4 <br\/> <span class='basic_pink'>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 4 <\/span> "}]}],"id_ques":1413},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["7"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y \u0111i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng <br\/> $\\dfrac{9}{21} = \\dfrac{3}{\\FormInput[40][bl_elm_true basic_elm basic_blank basic_blank_part]{}}$","hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> G\u1ecdi s\u1ed1 c\u1ea7n t\u00ecm l\u00e0 a <br\/> X\u00e9t t\u00edch: 9 . a = 21 . 3 <br\/> T\u1eeb \u0111\u00f3 t\u00ednh \u0111\u01b0\u1ee3c a <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> G\u1ecdi s\u1ed1 c\u1ea7n t\u00ecm l\u00e0 a <br\/> V\u00ec $\\dfrac{9}{21} = \\dfrac{3}{a}$ n\u00ean 9 . a = 21 . 3 <br\/> V\u00ec v\u1eady a = 21 . 3 : 9 = 7 <br\/> <span class='basic_pink'>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 7 <\/span> "}]}],"id_ques":1414},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/13.jpg' \/><\/center> <br\/> Cho A = {-5; 0; 7}. H\u00e3y ch\u1ecdn ph\u00e2n s\u1ed1 c\u00f3 t\u1eed s\u1ed1 v\u00e0 m\u1eabu s\u1ed1 thu\u1ed9c t\u1eadp h\u1ee3p A trong \u0111\u00f3 t\u1eed s\u1ed1 kh\u00e1c m\u1eabu s\u1ed1.","select":["A. $\\dfrac{-5}{7}$","B. $\\dfrac{-7}{-5}$","C. $\\dfrac{4}{7}$ ","D. $\\dfrac{-5}{-5}$"],"hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t c\u00e1c ph\u00e2n s\u1ed1 $\\dfrac{-5}{7}; \\dfrac{-7}{5}; \\dfrac{4}{7}; \\dfrac{-5}{-5}$ <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{-5}{7}$ c\u00f3 -5 v\u00e0 7 $\\in$ A v\u00e0 t\u1eed s\u1ed1 kh\u00e1c m\u1eabu s\u1ed1 <b> (th\u1ecfa m\u00e3n) <\/b> <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{-7}{-5}$ c\u00f3 -7 $\\notin$ A <b> (lo\u1ea1i) <\/b> <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{4}{7}$ c\u00f3 4 $\\notin$ A <b> (lo\u1ea1i) <\/b> <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{-5}{-5}$ c\u00f3 -5 $\\in$ A nh\u01b0ng t\u1eed s\u1ed1 b\u1eb1ng m\u1eabu s\u1ed1 <b> (lo\u1ea1i) <\/b> <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A. $\\dfrac{-5}{7}$ <\/span>","column":2}]}],"id_ques":1415},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/13.jpg' \/><\/center> <br\/> Cho M = {-2; -1; 4}. H\u00e3y ch\u1ecdn ph\u00e2n s\u1ed1 c\u00f3 t\u1eed s\u1ed1 v\u00e0 m\u1eabu s\u1ed1 thu\u1ed9c t\u1eadp h\u1ee3p M trong \u0111\u00f3 t\u1eed s\u1ed1 kh\u00e1c m\u1eabu s\u1ed1.","select":["A. $\\dfrac{-2}{1}$","B. $\\dfrac{-1}{-4}$","C. $\\dfrac{-3}{4}$ ","D. $\\dfrac{-2}{4}$"],"hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t c\u00e1c ph\u00e2n s\u1ed1 $\\dfrac{-2}{1}; \\dfrac{-1}{-4}; \\dfrac{-3}{4}; \\dfrac{-2}{4}$ <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{-2}{1}$ c\u00f3 1 $\\notin$ M <b> (lo\u1ea1i) <\/b> <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{-1}{-4}$ c\u00f3 -4 $\\notin$ M <b> (lo\u1ea1i) <\/b> <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{-3}{4}$ c\u00f3 -3 v\u00e0 4 $\\notin$ M <b> (lo\u1ea1i) <\/b> <br\/> Ph\u00e2n s\u1ed1 $\\dfrac{-2}{4}$ c\u00f3 -2; 4 $\\in$ M v\u00e0 t\u1eed s\u1ed1 kh\u00e1c m\u1eabu s\u1ed1 <b> (th\u1ecfa m\u00e3n) <\/b> <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. $\\dfrac{-2}{4}$ <\/span>","column":2}]}],"id_ques":1416},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/10.jpg' \/><\/center> <br\/> Ph\u00e2n s\u1ed1 b\u1eb1ng ph\u00e2n s\u1ed1 $\\dfrac{-12}{8}$ l\u00e0:","select":["A. $\\dfrac{12}{8}$","B. $\\dfrac{-6}{-4}$","C. $\\dfrac{-6}{4}$ ","D. $\\dfrac{-12}{-8}$"],"hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> +) X\u00e9t ph\u00e2n s\u1ed1: $\\dfrac{12}{8}$ v\u00e0 $\\dfrac{-12}{8}$ <br\/> C\u00f3 -12 . 8 = -96 v\u00e0 8 . 12 = 96 <br\/> V\u00ec -96 $\\neq$ 96 n\u00ean $\\dfrac{12}{8} \\neq \\dfrac{-12}{8}$ <br\/> +) X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{-6}{-4}$ v\u00e0 $\\dfrac{-12}{8}$ <br\/> C\u00f3: -12 . (-4) = 48 v\u00e0 8 . (-6) = -48 <br\/> V\u00ec 48 $\\neq$ -48 n\u00ean $\\dfrac{-6}{-4} \\neq \\dfrac{-12}{8}$ <br\/> +) X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{-6}{4}$ v\u00e0 $\\dfrac{-12}{8}$ <br\/> C\u00f3: (-12) . 4 = -48 v\u00e0 8 . (-6) = -48 <br\/> V\u00ec -48 = -48 n\u00ean $\\dfrac{-6}{4} = \\dfrac{-12}{8}$ <br\/> +) X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{-12}{-8}$ v\u00e0 $\\dfrac{-12}{8}$ <br\/> C\u00f3: -12 . (-8) = 96 v\u00e0 8 . (-12) = -96 <br\/> V\u00ec 96 $\\neq$ -96 n\u00ean $\\dfrac{-12}{8} \\neq \\dfrac{-12}{-8}$ <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. $\\dfrac{-6}{4}$ <\/span>","column":2}]}],"id_ques":1417},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai29/lv1/img\/10.jpg' \/><\/center> <br\/> Ph\u00e2n s\u1ed1 b\u1eb1ng ph\u00e2n s\u1ed1 $\\dfrac{-1}{2}$ l\u00e0:","select":["A. $\\dfrac{-1}{-2}$","B. $\\dfrac{1}{-2}$","C. $\\dfrac{-3}{-6}$ ","D. $\\dfrac{5}{6}$"],"hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m ph\u00e2n s\u1ed1 b\u1eb1ng nhau","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> +) X\u00e9t ph\u00e2n s\u1ed1: $\\dfrac{-1}{-2}$ v\u00e0 $\\dfrac{-1}{2}$ <br\/> C\u00f3 -1 . 2 = -2 v\u00e0 -2 . (-1) = 2 <br\/> V\u00ec -2 $\\neq$ 2 n\u00ean $\\dfrac{-1}{-2} \\neq \\dfrac{-1}{2}$ <br\/> +) X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{1}{-2}$ v\u00e0 $\\dfrac{-1}{2}$ <br\/> C\u00f3: 1 . 2 = 2 v\u00e0 -2 . (-1) = 2 <br\/> V\u00ec 2 = 2 n\u00ean $\\dfrac{-1}{2} = \\dfrac{-1}{-2}$ <br\/> +) X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{-3}{-6}$ v\u00e0 $\\dfrac{-1}{2}$ <br\/> C\u00f3: -3 . 2 = -6 v\u00e0 -6 . (-1) = 6 <br\/> V\u00ec $6 \\neq -6$ n\u00ean $\\dfrac{-1}{2} = \\dfrac{-3}{-6}$ <br\/> +) X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{-1}{2}$ v\u00e0 $\\dfrac{5}{6}$ <br\/> C\u00f3: -1 . 6 = -6 v\u00e0 2 . 5 = 10 <br\/> V\u00ec -6 $\\neq$ 10 n\u00ean $\\dfrac{-1}{2} \\neq \\dfrac{5}{6}$ <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B. $\\dfrac{1}{-2}$ <\/span>","column":2}]}],"id_ques":1418},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["1"],["4"]]],"list":[{"point":5,"width":50,"type_input":"","input_hint":["frac"],"ques":"Vi\u1ebft 15 ph\u00fat d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n v\u1edbi \u0111\u01a1n v\u1ecb l\u00e0 gi\u1edd. <br\/> \u0110\u00e1p \u00e1n l\u00e0: <div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div> gi\u1edd","hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> V\u00ec 1 gi\u1edd = 60 ph\u00fat <br\/> N\u00ean 15 ph\u00fat = $\\dfrac{15}{60}$ = $\\dfrac{1}{4}$ gi\u1edd."}]}],"id_ques":1419},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["53"],["60"]]],"list":[{"point":5,"width":50,"ques":"Vi\u1ebft 53 ph\u00fat d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 v\u1edbi \u0111\u01a1n v\u1ecb l\u00e0 gi\u1edd. <br\/> \u0110\u00e1p \u00e1n l\u00e0: <div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>gi\u1edd","hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> V\u00ec 1 gi\u1edd = 60 ph\u00fat <br\/> N\u00ean 53 ph\u00fat = $\\dfrac{53}{60}$ gi\u1edd"}]}],"id_ques":1420}],"lesson":{"save":0,"level":1}}

Điểm của bạn.

Câu hỏi này theo dạng chọn đáp án đúng, sau khi đọc xong câu hỏi, bạn bấm vào một trong số các đáp án mà chương trình đưa ra bên dưới, sau đó bấm vào nút gửi để kiểm tra đáp án và sẵn sàng chuyển sang câu hỏi kế tiếp

Trả lời đúng trong khoảng thời gian quy định bạn sẽ được + số điểm như sau:
Trong khoảng 1 phút đầu tiên + 5 điểm
Trong khoảng 1 phút -> 2 phút + 4 điểm
Trong khoảng 2 phút -> 3 phút + 3 điểm
Trong khoảng 3 phút -> 4 phút + 2 điểm
Trong khoảng 4 phút -> 5 phút + 1 điểm

Quá 5 phút: không được cộng điểm

Tổng thời gian làm mỗi câu (không giới hạn)

Điểm của bạn.

Bấm vào đây nếu phát hiện có lỗi hoặc muốn gửi góp ý