{"common":{"save":0,"post_id":"6948","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2468","post_id":"6948","mon_id":"1159012","chapter_id":"1159019","question":"<p>L\u1edbp 4A có 45 b\u1ea1n, trong \u0111ó có 24 b\u1ea1n h\u1ecdc n\u1eef. <\/p><p>S\u1ed1 b\u1ea1n h\u1ecdc n\u1eef b\u1eb1ng <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/> s\u1ed1 h\u1ecdc sinh c\u1ea3 l\u1edbp.<\/p><p>Tìm phân s\u1ed1 t\u1ed1i gi\u1ea3n \u0111\u1ec3 \u0111i\u1ec1n vào d\u1ea5u ch\u1ea5m h\u1ecfi.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{15}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{9}{15}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{25}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{15}$<\/span>"],"correct":"1","level":"2","hint":"","answer":"<p>S\u1ed1 b\u1ea1n h\u1ecdc n\u1eef b\u1eb1ng <span class=\"math-tex\">$\\dfrac{24}{45}$<\/span> s\u1ed1 h\u1ecdc sinh c\u1ea3 l\u1edbp.<\/p><p>Rút g\u1ecdn phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{24}{45}=\\dfrac{24:3}{45:3}=\\dfrac{8}{15}$<\/span> .<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{8}{15}$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 02:27:24","option_type":"math","len":0},{"id":"2471","post_id":"6948","mon_id":"1159012","chapter_id":"1159019","question":"<p>Có t\u1ea5t c\u1ea3 30 kg trái cây. Trong \u0111ó có 10 kg táo. <\/p><p>S\u1ed1 ki-lô-gam táo b\u1eb1ng <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/> t\u1ed5ng s\u1ed1 ki-lô-gam trái cây.<\/p><p>Tìm phân s\u1ed1 t\u1ed1i gi\u1ea3n \u0111\u1ec3 \u0111i\u1ec1n vào d\u1ea5u ch\u1ea5m h\u1ecfi.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{3}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{10}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{5}$<\/span>"],"correct":"2","level":"2","hint":"","answer":"<p>S\u1ed1 ki-lô-gam táo b\u1eb1ng <span class=\"math-tex\">$\\dfrac{10}{30}$<\/span> t\u1ed5ng s\u1ed1 ki-lô-gam trái cây.<\/p><p>Rút g\u1ecdn phân s\u1ed1 <span class=\"math-tex\">$\\dfrac{10}{30}=\\dfrac{10:10}{30:10}=\\dfrac{1}{3}$<\/span> .<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 02:31:50","option_type":"math","len":0},{"id":"2473","post_id":"6948","mon_id":"1159012","chapter_id":"1159019","question":"<p>So sánh <span class=\"math-tex\">$\\dfrac{25}{24}$<\/span> <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/> 1.<\/p>","options":["<strong>><\/strong>","<strong><<\/strong>","<strong>=<\/strong>"],"correct":"1","level":"2","hint":"","answer":"<p>Vì <span class=\"math-tex\">$\\dfrac{25}{24}>\\dfrac{24}{24}$<\/span> nên <span class=\"math-tex\">$\\dfrac{25}{24}>1$<\/span> .<\/p><p>Ch\u1ecdn ngôi sao ghi d\u1ea5u <span style=\"color:#16a085;\"><strong>><\/strong><\/span>.<\/p>","type":"choose","extra_type":"star","time":"0","user_id":"131","test":"0","date":"2024-02-07 02:35:34","option_type":"txt","len":0}]}