11/7-1/5+8/11-4/5 计算各题

问题描述:

11/7-1/5+8/11-4/5 计算各题
11/7 - 1/5 + 8/11- 4/5
=
=

11/7 - 1/5 + 8/11- 4/5
=11/7 + 8/11- 1
=4/7+8/11
=100/77