简算:11分之2乘8减11分之1乘5分之2加11分之2乘3减5分之3乘11分之1.
问题描述:
简算:11分之2乘8减11分之1乘5分之2加11分之2乘3减5分之3乘11分之1.
答
16/11-5/11+6/11-3/5x1/11
=17/11-3/55
=17x5/55-3/55
=82/55
答
2/11×8-1/11×2/5+2/11×3-3/5×1/11
=2/11(8+3)-1/11×(2/5+3/5)
=2-1/11
=1由10/11