问题 解答题
6:2.4   
7
8
5
6
     
1.5:
3
5
答案

6:2.4,

=(6×10):(2.4×10),

=60:24,

=(60÷12):(24÷12),

=5:2;

6:2.4,

=6÷2.4,

=2.5;

7
8
5
6

=(

7
8
×24):(
5
6
×24),

=21:20;

7
8
5
6

=

7
8
÷
5
6

=

21
20

1.5:

3
5

=1.5:0.6,

=(1.5×10):(0.6×10),

=15:6,

=(15÷3):(6÷3),

=5:2;

1.5:

3
5

=1.5÷

3
5

=2.5.

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