Ta có :3/4=3x9/4x9 4/9=4x4/9x4 5/18=5x2/18x2
=27/36 =16/36 =10/36
Đúng ko
Ta có :3/4=3x9/4x9 4/9=4x4/9x4 5/18=5x2/18x2
=27/36 =16/36 =10/36
Đúng ko
1, Quy dong mau so cac phan so 5/12,2/3 , 3/4
2,viet cac phan so lan luot bang 5/12, 7/18 va co mau so chung la 36
ai lam dung truoc minh tick cho
quy dong mau so cac phan so
4 phan 3; 1 phan 2 va 3 phan 5=
5 phan 6;7 phan 8;13 phan 24=
u so cac phan so
quy dong mau so cac phan so
a/4/7, 3/2 va 5phan4
b/4/15, 3/5 va 2/3
quy dong mau so cac phan so sau :3/7,4/9,8/21
quy dong mau so cac phan so
5 phan 3 va4 phan 7=
4 phan 3;1 phan 2 va 3 phan 5=
3 phan 4va9 phan 16=
5 phan 6;7 phan 8;13 phan24=
11 phan9 va 13 phan 6=
quy dong mau so 3 phan so 1 phan 4 ; 1 phan 2 ; va 1 phan 3
quy dong mau so cac phan so voi mau so chung nho nhat:a)1/6 va 1/9 b)3/8 va 5/12
quy dong mau so hai phan so 3/4 va 11/30 {voi mau so chung nho nhat} ta duoc hai phan so la ... va ...
quy dong mau so cac phan so
a)5, 5 3 phan
2 6 7