问题 解答题
求比值.
14
2
5
:0.72
4
7
:1
1
7

3
1
2
:2
1
3
答案

14

2
5
:0.72

=14

2
5
÷0.72

=14.4÷0.72

=20;

4
7
:1
1
7

=

4
7
÷1
1
7

=

1
2

3

1
2
:2
1
3

=3

1
2
÷2
1
3

=

7
2
÷
7
3

=

3
2

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