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6/11x7/8-5/12÷11/6 简算
人气:182 ℃ 时间:2020-05-12 15:29:56
解答
6/11x7/8-5/12÷11/6
=6/11x7/8-5/12x6/11
=6/11x(7/8-5/12)
=6/11x 11/24
=1/4
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