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想一想填一填 用2,3,4,6,9,12,写出三个大小相等的分数,每个数字只能用一次.你有几种填法?
()/( )=()/( )=()/( )
()/( )=()/( )=()/( )
人气:113 ℃ 时间:2019-08-21 15:58:28
解答
(2)/( 6)=(3)/( 9)=(4)/(12 )
(6)/( 2)=(9)/( 3)=(12)/(4 )
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