(7 1/2-3 4/5)+(4 1/3-4 1/5)请简便运算

问题描述:

(7 1/2-3 4/5)+(4 1/3-4 1/5)请简便运算
1 1/11+3 2/11+5 3/11 +7 5/11+```````19 10/11 请简便运算···

70/2+1/2-35/5+1/5+42/3-1/3-40/5-1/5
=35+1/2-7+1/5+14-1/3-8-1/5
=34+1/2-1/3
=34+1/6