Gọi 3 phân số đó có dạng x.Ta có : 2/5 < x < 4/7 => 14/35 < x < 20/35 => x có thể là 16/35 ; 18/35 ; 19/35
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tim 3 phan so co cung mau so, lon hon 2 phan 3 nhung be hon 3 phan 4?
tim 3 phan so co cung mau so, lon hon hai phan 3 nhung be hon 3 phan 4?
tim 3 phan so co cung mau so , lon hon 2 phan 3 nhung be hon ba phan bon?
tim phan so co tu so bang 3, lon hon 1 phan 6 nhung be hon 1 phan 5
hay tim 4 phan so khac nhau lon hon 3/7 nhung be hon 2/3 (ghi ro loi giai cho minh nhe)
tim phan so lon hon 1/2 nhung be hon 1/3
tim phan so co tu so bang ba, lon hon 1 phan 6 nhung be hon 1 phan 5.
tim 5 phan so be hon 5 phan 6 va lon hon 5 phan 7
1,
Tim 1 phan so biet tu so hon mau so 8 don vi va ti so cua tu so va mau so la 5/3
2,
Hay viet cac phan so co mau so la 9 va nam giua 2 phan so 6/18 va 16/27
3,
Hay viet 4 phan so khac nhau sao cho moi phan so lon hon 5/6 va be hon 6/7