问题 解答题

用1,2,3,4,5,6,7,8,9这九个数字,写出三个大小相等的分数,每个数字只能用一次.

答案

符合条件的分数有:

(1)

3
21
=
7
49
=
8
56

(2)

3
6
=
7
14
=
29
58

(3)

3
6
=
9
18
=
27
54

(4)

3
27
=
6
54
=
9
81

(5)

2
4
=
3
6
=
79
158
.(答案不唯一)

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