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用1,2,3,4,5,6,7,8,9组成三个相等的分数,数字不重复
()/()=()/()()=()()/()()
()/()()=()/()()=()/()()
人气:349 ℃ 时间:2019-12-09 21:28:03
解答
3/6=7/14=29/58
8/56 =7/49 =3/21
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