题目内容

6:2.4   
7
8
5
6
     
1.5:
3
5
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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