2-11⼀9=几分之几,3⼀5+11⼀15=几分之几

2025-03-19 01:58:00
推荐回答(1个)
回答1:

2-11/9
=18/9-11/9
=7/9
3/5+11/15
=9/15+11/15
=20/15
=4/3