(1.75-7分之3-14分之1)×5分之4 简便计算

2025-03-11 02:57:35
推荐回答(1个)
回答1:

(1.75-3/7-1/14)x4/5
=[1.75-(3/7+1/14)]x4/5
=(7/4-1/2)x4/5
=5/4x4/5
=1