4/11×1/8+0.125×2又7/11-0.125 简便算法

4/11×1/8+0.125×2又7/11-0.125 简便算法
4/11×1/8+0.125×2又7/11-0.125 简便算法

4/11×1/8+0.125×2又7/11-0.125 简便算法
1/8乘以（4/11+29/11-1）=1/8乘（3-1）=1/4

4/11×1/8+0.125×2又7/11-0.125
=4/11×0.125+0.125×29/11-0.125
=0.125×(4/11+29/11-1)
=0.125×2
=0.25