问题 解答题
求比值并化简比
0.25:0.75
7.85:1.25.
答案

0.25:0.75

=0.25÷0.75

=

1
3

0.25:0.75

=(0.25×4):(0.75×4)

=1:3

7.85:1.25

=7.85÷1.25

=

157
25

7.85:1.25

=(7.85×20):(1.25×20)

=157:25.

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