(11.6×4⼀5+17⼀5÷1.25)-77又7⼀9÷7怎么简便运算?

2024-11-23 03:53:47
推荐回答(1个)
回答1:

=(58/5*4/5+17/5*4/5)-(77/7+7/9/7)
=(58/5+17/5)*4/5-11-1/9
=75/5*4/5-11-1/9
=12-11-1/9
=8/9