cac ban nao biet giai bai toan nay k?De bai nhu sau:viet 3 phan so khac nhau co cung mau so ma moi phan so do:1 la lon hon phan so 1/5,2 la be hon phan so 1/4 va 3 la lon hon phan so 1/5,be hon phan so 1/4
hay viet 4 phan so kha nhau lon hon 3/5 va be hon 4/5
tim phan so lon nhat va phan so nho nhat co tu la 5,lon hon 6/20 va be hon 6/10
hay viet 4 phan so kha nhau lon hon 3/5 va be hon 3/4.
hay viet 4 phan so khac nhau lon hon 3/5 va be hon 3/4
Hay cho biet co bao nhiêu phan so lon hon 1 ma tu so va mau so deu là so co hai chu so chia het ch 5
hay viet 1 phan so lon hon 5/7 va nho hon 5/6 . co bao nhieu phan so nhu vay
cho ps 4/5 va 4/6. hay tim 7 phan so vua be hon 4/5 vua lon hon 4/6 rut gon cac ps do
Viet 5 phan so khac nhau sao cho moi phan so lon hon 5/7 va be hon 6/7