13⼀10⼀7+13⼀10*6⼀7用简便方法怎么算

2025-06-24 06:15:11
推荐回答(1个)
回答1:

13/10/7+13/10*6/7
=13/10*1/7+13/10*6/7
=13/10*(1/7+6/7)
=13/10*(7/7)
=13/10