问题 解答题
3
1
8
:1.25
化成最简单的整数比是______;比值是______.
答案

(1)3

1
8
:1.25,

=

25
8
:1
1
4

=

25
8
5
4

=(

25
8
×8):(
5
4
×8),

=25:10,

=(25÷5):(10÷5),

=5:2;

(3)3

1
8
:1.25,

=

25
8
÷1
1
4

=

25
8
÷
5
4

=

25
8
×
4
5

=

5
2

故答案为:5:2,

5
2

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