试题:
化简下面各比并求出比值.
75:35   6:
2
3
5.6:4.2
5
6
5
8
比的化简 2016-05-21

答案:

我来补答
75:35    
=(75÷5):(35÷5)
=15:7
75:35
=15:7
=
15
7


6:
2
3

=(6×3÷2):(
2
3
×3÷2)
=9:1
6:
2
3
 
=9:1
=9

5.6:4.2
=(5.6×5):(4.2×5)
=28:21
=(28÷7):(21÷7)
=4:3
5.6:4.2
=4:3
=
4
3


5
6
5
8

=(
5
6
×24÷5):(
5
8
×24÷5)
=4:3
5
6
5
8

=4:3
=
4
3
 
 
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