7/13乘6/29加6/13乘22/29的简便计算

问题描述:

7/13乘6/29加6/13乘22/29的简便计算

7/13乘6/29+6/13乘22/29
=6/13乘7/29+6/13乘22/29
=6/13乘(7/29+22/29)
=6/13乘1
=6/13