1╱4×3.125+7╱8×25%+1╱4简便算法

Question

如题所述

Answer 1

先把分数化成小数
1/4×3.125+7/8×25%+1/4
=0.25×3.125+0.875×0.25+0.25
=0.25×（3.125+0.875+1）
=0.25×5
=1.25
满意请点击右下角的采纳答案，谢谢

Answer 2

1╱4×3.125+7╱8×25%+1╱4
=1╱4×(3.125+7╱8+1)
=1╱4×5
=1.25本回答被网友采纳