先化简比再求比值0.72:0.369分之8
问题描述:
先化简比再求比值
0.72:0.36
9分之8
答
0.72:0.36=72*0.01:36*0.01
=72:36
=2:1
4/5:8/9=4*9:5*8
=9:5*2
=9:10
答
0.72:0.36=72:36=2:1 =2
5分之4:9分之8
=9:10
=10分之9