简便计算:6×11/8+15÷8/11-8/11×5

问题描述:

简便计算:6×11/8+15÷8/11-8/11×5

=[6+8-5]*11/8
=9*11/8
=99/8打错了,是:6×11/8+15÷8/11-11/8×5=[6-5+15]*8/11=16*8/11=128/11