Question

一道小学数学题!

1/2是3/4的几分之几
2/3是8/9的几分之几
7/8是1/4的几倍
4/5是1/4的几倍

Answer 1

记住这样的规律：谁是谁的几分之几就用谁除以谁，谁是谁的几倍就用谁除以谁，例如：

1/2是3/4的几分之几，就用（1/2）除以(3/4)得：2/3
同理：2/3是8/9的3/4
7/8是1/4的7/2倍，也就是3.5倍
4/5是1/4的16/5倍，也就是3.2倍

Answer 2

1/2是3/4的2/3
2/3是8/9的3/4
7/8是1/4的3.5倍
4/5是1/4的3.2倍

Answer 3

1/2是3/4的几分之几 (1/2)/(3/4)=2/3
2/3是8/9的几分之几 (2/3)/(8/9)=3/4
7/8是1/4的几倍 7/8)/(1/4)=7/2
4/5是1/4的几倍.(4/5)/(1/4)=16/5

Answer 4

1/2是3/4的几分之几
1/2÷3/4=1/2×4/3=2/3

2/3是8/9的几分之几
2/3÷8/9=2/3×9/8=3/4

7/8是1/4的几倍
7/8÷1/4=7/8×4=7/2

4/5是1/4的几倍
4/5÷1/4=4/5×4=16/5

Answer 5

1.(1/2)/(3/4)=2/3
2.(2/3)/(8/9)=3/4
3.(7/8)/(1/4)=7/2
4.(4/5)/(1/4)=1/5