{"common":{"save":0,"post_id":"7559","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1107","post_id":"7559","mon_id":"1159414","chapter_id":"1159417","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 ch\u1ea5m:&nbsp;<span class=\"math-tex\">$\\dfrac{30}{48}=\\dfrac{...}{8}$<\/span>.<\/p>","options":["<strong>A.<\/strong> 4","<strong>B.<\/strong> 5","<strong>C.<\/strong> 6","<strong>D. <\/strong>7"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> 5<\/span><\/p><p>Ta c&oacute;:&nbsp;<span class=\"math-tex\">$\\dfrac{30}{48}=\\dfrac{30:6}{48:6}=\\dfrac{5}{8}$<\/span><\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:22:39","option_type":"txt","len":0},{"id":"1109","post_id":"7559","mon_id":"1159414","chapter_id":"1159417","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 ch\u1ea5m:&nbsp;<span class=\"math-tex\">$\\dfrac{7}{15}=\\dfrac{...}{135}$<\/span><\/p>","options":["<strong>A.<\/strong> 61","<strong>B.<\/strong> 64","<strong>C.<\/strong> 63","<strong>D. <\/strong>67"],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;63<\/span><\/p><p>Ta c&oacute;:&nbsp;<span class=\"math-tex\">$\\dfrac{7}{15}=\\dfrac{7\\times9}{15\\times9}=\\dfrac{63}{135}$<\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:25:47","option_type":"txt","len":0},{"id":"1111","post_id":"7559","mon_id":"1159414","chapter_id":"1159417","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 ch\u1ea5m:&nbsp;<span class=\"math-tex\">$\\dfrac{11}{13}=\\dfrac{121}{...}$<\/span><\/p>","options":["<strong>A.<\/strong> 143","<strong>B.<\/strong> 141","<strong>C.<\/strong> 133","<strong>D. <\/strong>123"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;143<\/span><\/p><p>Ta c&oacute;:&nbsp;<span class=\"math-tex\">$\\dfrac{11}{13}=\\dfrac{11\\times11}{13\\times11}=\\dfrac{121}{143}$<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-08-18 00:27:46","option_type":"txt","len":0}]}