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(25/19+16/17)*1/8+15/17=?杂的简算?
人气:135 ℃ 时间:2020-06-19 00:42:43
解答
(1+6/19+16/17)*1/8+15/17
=1/8+3/76+2/17+15/17
=1/8+3/76+1
=38/304+12/304+1
=177/152
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