{"common":{"save":0,"post_id":"6949","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2493","post_id":"6949","mon_id":"1159012","chapter_id":"1159019","question":"<p><span class=\"math-tex\">$\\dfrac{48}{80}$<\/span>&nbsp;=&nbsp;<span class=\"frac123\"><span class=\"ts\">6<\/span><span class=\"ms\">&lt;input class=\"tim_x input_number\" type=\"text\" \/&gt;&lt;\/span><\/span><span class=\"operator\">= <\/span><span class=\"frac123\"><span class=\"ts\">&lt;input class=\"tim_x input_number\" type=\"text\" \/&gt;&lt;\/span><span class=\"ms\">5<\/span><\/span><\/p>","options":"","correct":["[\"10\",\"3\"]"],"level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{48}{80}=\\dfrac{48:8}{80:8}=$<\/span>&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{6}{10}$<\/span><\/span>&nbsp;<span class=\"math-tex\">$=\\dfrac{6:2}{10:2}=$<\/span>&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{3}{5}$<\/span><\/span>&nbsp;.<\/p><p>C&aacute;c s\u1ed1 c\u1ea7n \u0111i\u1ec1n t\u1eeb tr&aacute;i sang ph\u1ea3i&nbsp;l\u1ea7n l\u01b0\u1ee3t l&agrave; <span style=\"color:#16a085;\"><strong>10 <\/strong><\/span>v&agrave; <span style=\"color:#16a085;\"><strong>3<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-02-07 03:55:13"},{"id":"2496","post_id":"6949","mon_id":"1159012","chapter_id":"1159019","question":"<p>\u0110o\u1ea1n th\u1eb3ng AB d&agrave;i 4 cm, \u0111o\u1ea1n th\u1eb3ng CD&nbsp;d&agrave;i 10 cm.<\/p><p>Ch\u1ecdn c&acirc;u \u0111&uacute;ng.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$AB = \\dfrac{2}{5}CD$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$AB = \\dfrac{3}{5}CD$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$AB = \\dfrac{4}{5}CD$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$AB = \\dfrac{2}{3}CD$<\/span>"],"correct":"1","level":"3","hint":"","answer":"<p>R&uacute;t g\u1ecdn&nbsp;<span class=\"math-tex\">$\\dfrac{4}{10}=\\dfrac{4:2}{10:2}=\\dfrac{2}{5}$<\/span>&nbsp;.<\/p><p><span class=\"math-tex\">$AB=\\dfrac{4}{10}CD=\\dfrac{2}{5}CD$<\/span>.<\/p><p>Ch\u1ecdn<span style=\"color:#16a085;\">&nbsp;<strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$AB = \\dfrac{2}{5}CD$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 04:02:09","option_type":"math","len":0},{"id":"2498","post_id":"6949","mon_id":"1159012","chapter_id":"1159019","question":"<p>C&oacute; m\u1ed9t c&aacute;i b&aacute;nh kem. Mai \u0103n&nbsp;<span class=\"math-tex\">$\\dfrac{1}{6}$<\/span>&nbsp;c&aacute;i b&aacute;nh, Hoa \u0103n&nbsp;<span class=\"math-tex\">$\\dfrac{1}{4}$<\/span>&nbsp;c&aacute;i b&aacute;nh v&agrave; Nam \u0103n&nbsp;<span class=\"math-tex\">$\\dfrac{1}{2}$<\/span>&nbsp;c&aacute;i b&aacute;nh. H\u1ecfi b\u1ea1n n&agrave;o \u0103n nhi\u1ec1u nh\u1ea5t, b\u1ea1n n&agrave;o \u0103n &iacute;t nh\u1ea5t?<\/p>","options":["<strong>A.<\/strong> Hoa \u0103n nhi\u1ec1u nh\u1ea5t, Nam \u0103n &iacute;t nh\u1ea5t.","<strong>B.<\/strong> Hoa \u0103n nhi\u1ec1u nh\u1ea5t, Mai \u0103n &iacute;t nh\u1ea5t.","<strong>C.<\/strong> Nam \u0103n nhi\u1ec1u nh\u1ea5t, Mai \u0103n &iacute;t nh\u1ea5t.","<strong>D.<\/strong> Mai \u0103n nhi\u1ec1u nh\u1ea5t, Nam \u0103n &iacute;t nh\u1ea5t."],"correct":"3","level":"3","hint":"<p>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 nh\u1ecf h\u01a1n th&igrave; l\u1edbn h\u01a1n.<\/p>","answer":"<p>V&igrave; c\u1ea3 ba ph&acirc;n s\u1ed1 c&oacute; chung t\u1eed s\u1ed1 l&agrave; 1 v&agrave; 2 &lt; 4 &lt; 6 n&ecirc;n&nbsp;<span class=\"math-tex\">$\\dfrac{1}{2}>\\dfrac{1}{4}>\\dfrac{1}{6}$<\/span>&nbsp;.<\/p><p>Do \u0111&oacute; Nam \u0103n nhi\u1ec1u nh\u1ea5t, Mai \u0103n &iacute;t nh\u1ea5t.<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong> Nam \u0103n nhi\u1ec1u nh\u1ea5t, Mai \u0103n &iacute;t nh\u1ea5t.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 04:07:49","option_type":"txt","len":2}]}