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简便计算:2减6/13除以9/26减2/3
人气:340 ℃ 时间:2020-03-30 19:23:47
解答
2-6/13÷9/26-2/3
=2-6/13×26/9-2/3
=2-4/3-2/3
=2-(4/3+2/3)
=2-2
=0
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