1⼀9+5⼀9与2⼀9的差和是多少?

2025-06-27 07:51:26
推荐回答(2个)
回答1:

1/9+(5/9-2/9)
=1/9+3/9
=4/9

回答2:

1/9+(5/9-2/9)
=1/9+3/9
=4/9