用简便方法计算： 7/29*3/8*6/29*7/12+3/29*7/9
人气：291 ℃ 时间：2020-03-22 07:25:28
解答
7/29*3/8+6/29*7/12+3/29*7/9
= 7/29*3/8+7/29*6/12+7/29*3/9
=7/29*（3/8+6/12+3/9）
=7/29*29/24
=7/24
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