195/221 =
195 : 13 / 221 : 13
= 15 / 17 h nha
195/221=15/17
bởi vì: 195/13=15 và 221/13= 17
Rut gon phan so 195/221,duoc toi gian la
de rut gon phan so 207207/324324 thanh phan so toi gian ta phai cung chia ca tu so va mau so cho ......
rut gon phan so 272727/727272 de duoc phan so toi gian
Rut gon phan so 306/342 duoc phan so toi gian la
rut gon phan so 42/182 den phan so toi gian ta duoc phan so a/b khi do a+b=
Rut gon phan so 24/36 ta duoc phan so toi gian la:
A.12/18
B.8/12
C.2/3
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
131313/151515 rut gon ve phan so toi gian
rut gon phan so 1960/1008 ta duoc phsn so toi gian la
