Các câu hỏi tương tự
81 phan 54 rut gon lai lai la bao nhieu phan
Rut gon phan so roi so sanh cac phan so
A,16 phan 20 va 9 phan 15
B,6 phan 8 va 3 phan 12
C, 15 phan 25 va 36 phan 45
Loi giai cu the nhe cac ban
rut gon roi so sanh hai phan so
18/72 va15/20
24/36 va 20/50
5/6 va 45/54
Cho cac phan so 5 / 7, 6 / 9 , 12 / 24 , 23 / 24 va 6 / 14
a Tim phan so toi gian
b Phan so nao rut gon duoc . Hay rut gon
ai nhanh nhat minh TICK cho
Hay rut gon cac phan so sau :
9 phan 6 ; 12 phan 4 va 90 phan 70
Cac ban hay rut gon va doc giong nhu minh nhe.
rut gon phan so 195/221 thanh phan so toi gian
rut gon phan so
15 nhan 64 phan 16 nhan 40
2 nhan 3 nhan 5 phan 70
21 nhan 45 phan 9 nhan 7 nhan 5 nhan 3
rut gon phan so 272727/727272 de duoc phan so toi gian
rut gon phan so
34 phan 51