简便计算5⼀8-【(1⼀2+3⼀5)*5⼀11】

2024-12-22 09:11:40
推荐回答(1个)
回答1:

解:原式=5/8-(1/2*5/11+3/5*5/11)
=5/8-(5/22+3/11)
=5/8-(5/22+6/22)
=5/8-11/22
=5/8-1/2
=5/8-4/8
=1/8