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5/1除以[(3/2+5/1*13/8]
人气:489 ℃ 时间:2020-06-08 11:11:10
解答
5/1除以[(3/2+5/1*13/8]
=5/1÷(3/2+65/8)
=5/1÷195/154
=5/1×154/195
=65/154
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