问题 解答题
化简比.
100:25
7
10
:0.35
5
51
1
17
1.25:3.
答案

100:25,

=(10÷25):(25÷25),

=4:1;

7
10
:0.35,

=0.7:0.35,

=(0.7÷0.35):(0.35÷0.35(,

=2:1;

5
51
1
17

=(

5
51
×51):(
1
17
×51),

=5:3;

1.25:3,

=(1.25×100):(3×100),

=125:300,

=(125÷25):(300÷25),

=5:12.

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