+ Ta có:
17/15 > 1; 29/30 < 1
=> 17/15 > 29/30
+ Ta có:
12/48 < 12/47 < 13/47
=> 12/48 < 13/47
+ 15/22 = 60/88 > 60/91
=> 15/22 > 60/91
Khong quy dong mau so hay so sanh hai phan so 12 phan 49 va 13 phan 47
1.Khong quy dong, hay so sanh cac phan so bang cach hop ly nhat
a,3/4 va 4/5
b,4/3 va 1999/1998
1.Khong quy dong,hay so sanh cac phan so bang cach hop ly nhat
a,3/4 va 4/5
b,4/3 va 1999/1998
cam on mn nhieu
3.khong quy dong hay so sanh
A,15/23 va 70/115
B, 19/60 va 31/90
1.khong quy dong hay so sanh cac phan so bang cach hop ly nhat
a,3/4 va 4/5
b,4/3 va 1999/1998
moi nguoi giup minh voi a,minh xin cam on
khong quy dong tu va mau hay so sanh hai phan so
5/6......6/7
so sanh cac phan so sau day bang cach hop li nhat
a}23/3 va 15/2
b 4/17 va 2/9
cho cac phan so 17 phan 20,23 phan 30 37 phan 40 va 53 phan 60 hay viet cac phan so do thanh cac phan so co mau so la 120
khong quy dong tu so va mau so so sanh phan so theo cach p/s trung gian : 3/10 va 5/11
