问题 解答题
求比值:
3.5:
5
7
3
4
2
5
0.8:
1
100
5厘米:20千米
3
9
20
:0.75
4.6:9
1
5

1
5
米:12分米
1.25:6.5
答案

3.5:

5
7

=3.5÷

5
7

=4.9;

3
4
2
5

=

3
4
÷
2
5

=

15
8

0.8:

1
100

=0.8÷

1
100

=80;

5厘米:20千米

=5厘米:2000000厘米

=5÷2000000

=

1
400000

3

9
20
:0.75

=

69
20
÷
3
4

=

23
5

4.6:9

1
5

=4.6÷

46
5

=0.5;

1.25:6.5

=1.25÷6.5

=

5
26

1
5
米:12分米

=2分米:12分米

=2÷12

=

1
6

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