9/23+1/9+8/9+7/9+7/8+1/8怎么简便计算？

9/23+1/9+8/9+7/9+7/8+1/8怎么简便计算？
9/23+1/9+8/9+7/9+7/8+1/8
=9/23+(1/9+8/9+7/9)+(7/8+1/8)
=9/23+1+7/9+1
=9/23+7