用简便方法计算:8⼀9-(2⼀9+1⼀3)

2024-11-17 13:53:48
推荐回答(1个)
回答1:

用简便方法计算:
8/9-(2/9+1/3)
=8/9-2/9-1/3
=2/3-1/3
=1/3