7⼀8+1⼀4-1⼀5的差除以1⼀4简便方法计算。

2025-02-25 04:51:00
推荐回答(1个)
回答1:

(7/8+1/4-1/5)÷1/4 =(7/8+1/4-1/5)×4 =7/2+1-4/5 =3.5+0.2 =3.7