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5/12除以【11/6-(3/4+ 1/2)】简便计算
人气:400 ℃ 时间:2020-04-09 21:31:23
解答
5/12除以[11/6-(3/4+1/2)]
=5/12除以[11/6-1/2-3/4]
=5/12除以[4/3-3/4]
=5/12除以7/12
=5/7
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