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求比值
60:42         
4.8:7.5       
3
8
9
20

3.5:8
2
5
人气:130 ℃ 时间:2020-01-30 01:06:59
解答
(1)60:42,
=60÷42,
=
10
7

        
(2)4.8:7.5,
=4.8÷7.5,
=
16
25

     
(3)
3
8
9
20

=
3
8
÷
9
20

=
5
6

(4)3.5:8
2
5

=3.5÷8
2
5

=3.5÷
42
5

=
5
12
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