{"common":{"save":0,"post_id":"5788","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8119","post_id":"5788","mon_id":"1158532","chapter_id":"1158659","question":"<p>N\u1ebfu&nbsp;<span class=\"math-tex\">$\\dfrac{a}{b}=\\dfrac{c}{d}$<\/span>&nbsp;th&igrave;<\/p>","options":["<strong>A.<\/strong> a = c","<strong>B.<\/strong> a.d = b.c","<strong>C.<\/strong> b = d","<strong>D.<\/strong> a.c = b.d"],"correct":"2","level":"1","hint":"<p>N\u1ebfu&nbsp;<span class=\"math-tex\">$\\dfrac{a}{b}=\\dfrac{c}{d}$<\/span>&nbsp;th&igrave; a.d = b.c<\/p>","answer":"<p>N\u1ebfu&nbsp;<span class=\"math-tex\">$\\dfrac{a}{b}=\\dfrac{c}{d}$<\/span>&nbsp;th&igrave; a.d = b.c<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> a.d = b.c<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"3","date":"2022-05-26 02:52:16","option_type":"txt","len":1},{"id":"8122","post_id":"5788","mon_id":"1158532","chapter_id":"1158659","question":"<p>T\u1eeb t\u1ec9 l\u1ec7 th\u1ee9c&nbsp;&nbsp;2 . 15 = 7,5 . 4&nbsp;, nh\u1eefng&nbsp;t\u1ec9 l\u1ec7 th\u1ee9c n&agrave;o sau \u0111&acirc;y l&agrave; \u0111&uacute;ng?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{7,5}=\\dfrac{4}{15}$<\/span>","<strong>B. <span class=\"math-tex\">$\\dfrac{15}{4}=\\dfrac{7,5}{2}$<\/span><\/strong>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{15}=\\dfrac{7,5}{4}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{15}{4}=\\dfrac{2}{7,5}$<\/span>"],"correct":"[\"1\",\"2\"]","level":"1","hint":"<p>N\u1ebfu a . d = b . c th&igrave; ta c&oacute; c&aacute;c t\u1ec9 l\u1ec7 th\u1ee9c&nbsp;&nbsp;<\/p><p><span class=\"math-tex\">$\\dfrac{a}{b}=\\dfrac{c}{d}$<\/span>&nbsp; ;&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{a}{c}=\\dfrac{b}{d}$<\/span>&nbsp; &nbsp;;&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{d}{b}=\\dfrac{c}{a}$<\/span>&nbsp; ;&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{d}{c}=\\dfrac{b}{a}$<\/span><\/p>","answer":"<p>T\u1eeb&nbsp; 2 . 15 = 7,5 . 4 ta c&oacute; c&aacute;c t\u1ec9 l\u1ec7 th\u1ee9c l&agrave;&nbsp;&nbsp;<\/p><p><span class=\"math-tex\">$\\dfrac{2}{4}=\\dfrac{7,5}{15}$<\/span>&nbsp; ;&nbsp; &nbsp;<span class=\"math-tex\">$\\dfrac{2}{7,5}=\\dfrac{4}{15}$<\/span>&nbsp; &nbsp;;&nbsp; &nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{15}{4}=\\dfrac{7,5}{2}$<\/span>&nbsp; ;&nbsp; &nbsp;<span class=\"math-tex\">$\\dfrac{15}{7,5}=\\dfrac{4}{2}$<\/span><\/p><p>C&aacute;c \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{2}{7,5}=\\dfrac{4}{15}$<\/span>&nbsp; &nbsp;v&agrave;&nbsp; &nbsp;<strong>B.&nbsp;<span class=\"math-tex\">$\\dfrac{15}{4}=\\dfrac{7,5}{2}$<\/span><\/strong><\/span><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"131","test":"1","date":"2022-05-26 03:03:17","option_type":"math","len":0},{"id":"8124","post_id":"5788","mon_id":"1158532","chapter_id":"1158659","question":"<p>T\u1ec9 s\u1ed1 <span class=\"math-tex\">$\\dfrac{1,3}{3,9}$<\/span>&nbsp; v&agrave; t\u1ec9 s\u1ed1 n&agrave;o sau \u0111&acirc;y l\u1eadp th&agrave;nh m\u1ed9t t\u1ec9 l\u1ec7 th\u1ee9c?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{3}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{2}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{2}$<\/span>"],"correct":"1","level":"1","hint":"<p>N\u1ebfu&nbsp;<span class=\"math-tex\">$\\dfrac{a}{b}=\\dfrac{c}{d}$<\/span> th&igrave;&nbsp; a . d = b . c<\/p>","answer":"<p>V&igrave;&nbsp; 1,3 . 3 = 3,9 . 1&nbsp; n&ecirc;n&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{1,3}{3,9} = \\dfrac{1}{3}$<\/span>&nbsp;.<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{1}{3}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-05-26 03:08:54","option_type":"math","len":0}]}