8/13除以7加1/7乘6/13 =8/13乘1/7+1/7乘6/13 =（8/13+6/13）*1/7 =14/13*1/7 =2/13
回复-
张雅梦用户2024-11-228/13除以7加1/7乘6/13 =8/13乘1/7+1/7乘6/13 =（8/13+6/13）*1/7 =14/13*1/7 =2/131楼 - 郭颖倩用户2024-11-228/13除以7可以换成 8/13*1/7 提公因式1/7 得1/7(8/13+6/13） 1/7*14/13=2/132楼
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马迎梦用户2024-11-228/13÷7+1/7x6/13 =8/13x1/7+1/7x6/13 =1/13x8/7+1/13x6/7 =1/13x(8/7+6/7) =2/13 8/13÷7+1/7x6/13 =8/13x1/7+1/7x6/13 =1/7x(8/13+6/13) =1/7x14/13 =2/133楼
