{"common":{"save":0,"post_id":"6899","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2787","post_id":"6899","mon_id":"1159012","chapter_id":"1159027","question":"<p>R&uacute;t g\u1ecdn th&agrave;nh ph&acirc;n s\u1ed1 t\u1ed1i gi\u1ea3n bi\u1ec3u th\u1ee9c<\/p><p>&nbsp;<span class=\"math-tex\">$\\dfrac{5\\mathbf{x}101\\mathbf{x}6}{101\\mathbf{x}24\\mathbf{x}5}$<\/span>&nbsp; =&nbsp;<span class=\"frac123\"><span class=\"ts\">&lt;input class=\"tim_x input_number\" type=\"text\" \/&gt;&lt;\/span><span class=\"ms\">&lt;input class=\"tim_x input_number\" type=\"text\" \/&gt;&lt;\/span><\/span> .<\/p>","options":"","correct":["[\"1\",\"4\"]"],"level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{5\\mathbf{x}101\\mathbf{x}6}{101\\mathbf{x}24\\mathbf{x}5}$<\/span>&nbsp;=&nbsp;<span class=\"math-tex\">$\\dfrac{6}{24}$<\/span>&nbsp;=&nbsp;<span class=\"math-tex\">$\\dfrac{6:6}{24:6}=\\dfrac{1}{4}$<\/span>&nbsp;.<\/p><p>(L\u1ea7n l\u01b0\u1ee3t l\u1ea5y c\u1ea3 t\u1eed s\u1ed1 v&agrave; m\u1eabu s\u1ed1 c\u1ee7a bi\u1ec3u th\u1ee9c chia cho 5 r\u1ed3i chia cho 101).<\/p><p>C&aacute;c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t l&agrave; <span style=\"color:#16a085;\"><strong>1<\/strong><\/span> v&agrave; <span style=\"color:#16a085;\"><strong>4<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-02-14 03:24:09"},{"id":"2789","post_id":"6899","mon_id":"1159012","chapter_id":"1159027","question":"<p>R&uacute;t g\u1ecdn th&agrave;nh ph&acirc;n s\u1ed1 t\u1ed1i gi\u1ea3n bi\u1ec3u th\u1ee9c<\/p><p><span class=\"math-tex\">$\\dfrac{7\\mathbf{x}103\\mathbf{x}8}{103\\mathbf{x}20\\mathbf{x}7}$<\/span>&nbsp;=&nbsp;<span class=\"frac123\"><span class=\"ts\">&lt;input class=\"tim_x input_number\" type=\"text\" \/&gt;&lt;\/span><span class=\"ms\">&lt;input class=\"tim_x input_number\" type=\"text\" \/&gt;&lt;\/span><\/span> .<\/p>","options":"","correct":["[\"2\",\"5\"]"],"level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{7\\mathbf{x}103\\mathbf{x}8}{103\\mathbf{x}20\\mathbf{x}7}$<\/span>&nbsp;=&nbsp;<span class=\"math-tex\">$\\dfrac{8}{20}=\\dfrac{8:4}{20:4}=$<\/span>&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{2}{5}$<\/span><\/span>&nbsp;.<\/p><p>(L\u1ea7n l\u01b0\u1ee3t l\u1ea5y c\u1ea3 t\u1eed s\u1ed1 v&agrave; m\u1eabu s\u1ed1 c\u1ee7a bi\u1ec3u th\u1ee9c chia cho 7 r\u1ed3i chia cho 103).<\/p><p>C&aacute;c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t l&agrave; <span style=\"color:#16a085;\"><strong>2<\/strong><\/span> v&agrave; <span style=\"color:#16a085;\"><strong>5<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-02-14 03:35:08"},{"id":"2790","post_id":"6899","mon_id":"1159012","chapter_id":"1159027","question":"<p>Ph&acirc;n s\u1ed1 n&agrave;o d\u01b0\u1edbi \u0111&acirc;y l\u1edbn h\u01a1n ph&acirc;n s\u1ed1&nbsp;<span class=\"math-tex\">$\\dfrac{3}{7}$<\/span>&nbsp;?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{7}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{6}{14}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{8}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{14}$<\/span>"],"correct":"4","level":"3","hint":"","answer":"<p><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{2}{7}<\\dfrac{3}{7}$<\/span>.<\/p><p><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{6}{14}=\\dfrac{3}{7}$<\/span><\/p><p><strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{3}{8}<\\dfrac{3}{7}$<\/span>&nbsp;(Trong hai ph&acirc;n s\u1ed1 c&oacute; c&ugrave;ng t\u1eed s\u1ed1, ph&acirc;n s\u1ed1 n&agrave;o c&oacute; m\u1eabu s\u1ed1 l\u1edbn h\u01a1n th&igrave; ph&acirc;n s\u1ed1 \u0111&oacute; nh\u1ecf h\u01a1n).<\/p><p><strong>D.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{8}{14}=\\dfrac{4}{7} $<\/span><span style=\"color:#16a085;\">&nbsp;<span class=\"math-tex\">$>\\dfrac{3}{7}$<\/span><\/span><\/p><p>Ch\u1ecdn<span style=\"color:#16a085;\">&nbsp;<\/span><span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{8}{14}$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-14 03:40:20","option_type":"math","len":0}]}