问题 解答题
求比值.
0.6﹕2.53﹕
1
4
3
5
5
9
答案

(1)0.6﹕2.5,

=0.6÷2.5,

=

6
25

(2)3﹕

1
4

=3÷

1
4

=12;

(3)

3
5
5
9

=

3
5
÷
5
9

=

27
25

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