问题 解答题
求比值
①126:84

②0.4:0.6

③5
1
4
:4
1
5

④0.36:1.2

⑤28
1
2
:2
1
4
答案

①126:84,

=126÷84,

=1.5;

②0.4:0.6,

=0.4÷0.6,

=

2
3

③5

1
4
:4
1
5

=5

1
4
÷4
1
5

=

21
4
÷
21
5

=

5
4

④0.36:1.2,

=0.36÷1.2,

=0.3;

⑤28

1
2
:2
1
4

=

57
2
÷
9
4

=

114
9

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