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4分之3×9分之2+0.75×9分之5 计算题麻烦写一下过程,
人气:306 ℃ 时间:2020-01-28 03:50:33
解答
4分之3×9分之2+0.75×9分之5
=3/4x2/9+3/4x5/9
=3/4x(2/9+5/9)
=3/4x1
=3/4
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