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数学
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五分之七减八分之五减十六分之九除以二分之三 这题怎么简算
人气:202 ℃ 时间:2019-08-17 22:13:46
解答
7/5-5/8-9/16÷3/2
=7/5-5/8-3/8
=7/5-1
=2/5
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