9⼀11-括号5⼀13-2⼀11括号怎么算

9/11-括号5/13-2/11括号怎么算
2024-10-29 05:49:29
推荐回答(1个)
回答1:

=9/11-5/13+2/11
=9/11+2/11-5/13
=1-5/13
=8/13