问题 解答题
求比值.
13:130
0.56:0.8
4
5
1
10
2.5:
3
4
答案

(1)13:130,

=13÷130,

=

1
10

(2)0.56:0.8,

=0.56÷0.8,

=

7
10

(3)

4
5
1
10

=

4
5
÷
1
10

=8;

(4)2.5:

3
4

=2.5÷

3
4

=

10
3

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