7⼀8-括号3⼀8+1⼀4反括号用简便方法计算

7/8-括号3/8+1/4反括号用简便方法计算
2024-10-31 10:18:41
推荐回答(5个)
回答1:

如下

回答2:


see

回答3:

原式
=7/8-3/8-1/4
=4/8-1/4
=2/4-1/4
=1/4

回答4:

解: 7/8-(3/8+1/4)=7/8-(3/8+2/8)
=7/8-5/8
=2/8
=1/4

回答5:

7/8-(3/8+1/4)
=7/8-3/8-1/4
=1/2-1/4
=1/4