{"common":{"save":0,"post_id":"6947","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2345","post_id":"6947","mon_id":"1159012","chapter_id":"1159019","question":"<p>Rút g\u1ecdn các phân s\u1ed1 \u1edf c\u1ed9t bên trái \u0111\u01b0\u1ee3c phân s\u1ed1 nào \u1edf c\u1ed9t bên ph\u1ea3i?<\/p>","options":[["<span class=\"math-tex\">$\\dfrac{40}{45}$<\/span>","<span class=\"math-tex\">$\\dfrac{32}{40}$<\/span>","<span class=\"math-tex\">$\\dfrac{56}{60}$<\/span>"],["<span class=\"math-tex\">$\\dfrac{14}{15}$<\/span>","<span class=\"math-tex\">$\\dfrac{8}{9}$<\/span>","<span class=\"math-tex\">$\\dfrac{4}{5}$<\/span>"],["<span class=\"math-tex\">$\\dfrac{8}{9}$<\/span>","<span class=\"math-tex\">$\\dfrac{4}{5}$<\/span>","<span class=\"math-tex\">$\\dfrac{14}{15}$<\/span>"]],"correct":[2,0,1],"level":"2","hint":"","answer":"<p><span style=\"color:#2980b9;\"><span class=\"math-tex\">$\\dfrac{40}{45}=\\dfrac{40:5}{45:5}=\\dfrac{8}{9}$<\/span><\/span><\/p><p><span style=\"color:#e74c3c;\"><span class=\"math-tex\">$\\dfrac{32}{40}=\\dfrac{32:8}{40:8}=\\dfrac{4}{5}$<\/span><\/span><\/p><p><span style=\"color:#2c3e50;\"><span class=\"math-tex\">$\\dfrac{56}{60}=\\dfrac{56:4}{60:4}=\\dfrac{14}{15}$<\/span><\/span><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"131","test":"0","date":"2024-01-31 01:52:48"},{"id":"2354","post_id":"6947","mon_id":"1159012","chapter_id":"1159019","question":"<p>Rút g\u1ecdn phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{75}{100}$<\/span> \u0111\u01b0\u1ee3c phân s\u1ed1 t\u1ed1i gi\u1ea3n là:<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{5}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{4}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{4}{3}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{3}$<\/span>"],"correct":"2","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{75}{100}=\\dfrac{75:25}{100:25}=\\dfrac{3}{4}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{4}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-01-31 02:06:17","option_type":"math","len":0},{"id":"2363","post_id":"6947","mon_id":"1159012","chapter_id":"1159019","question":"<p>Phân s\u1ed1 nào rút g\u1ecdn \u0111\u01b0\u1ee3c phân s\u1ed1 t\u1ed1i gi\u1ea3n là phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{4}{7}$<\/span>?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{16}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{18}{14}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{24}{18}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{14}$<\/span>"],"correct":"4","level":"2","hint":"","answer":"<p><strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{16}=\\dfrac{8:8}{16:8}=\\dfrac{1}{2}$<\/span><\/p><p><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{18}{14}=\\dfrac{18:2}{14:2}=\\dfrac{9}{7}$<\/span><\/p><p><strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{24}{18}=\\dfrac{24:6}{18:6}=\\dfrac{4}{3}$<\/span><\/p><p><strong>D.<\/strong> <span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{8}{14}=\\dfrac{8:2}{14:2}=\\dfrac{4}{7}$<\/span><\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{14}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-01-31 02:25:52","option_type":"math","len":0}]}
