谁知到这题怎么用简便计算啊

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

7/13*(6/29)+6/13*(22/29)
=7/13*(6/29)+22/13*(6/29)
=6/29*(7/13+22/13)
=6/29*29/13
=6/13

=7/13*6/29+7/13*22/29-22/29
=7/13*28/29-22/29
=7/13*1-22/29-7/13
=-22/29

（7/13）*（6/29）+（6/13）*（22/29）
=（7*6+6*22）/(13*29)
=6*(7+22)/(13*29)
6/13

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

7/13 * 6/29 + 6/13 * 22/29
这样吧?

提取1/13 和1/29
也就是1/13*1/29*(7*6+6*22)
1/13*1/29*[6*(7+22)]
=1/13*1/29*6*29
29和1/29约掉了
只有1/13*6了
所以答案就是6/13