7⼀9+3⼀10-2⼀9+17⼀10用简便方法计算

2025-02-23 14:02:46
推荐回答(2个)
回答1:

7/9+3/10-2/9+17/10
=(7/9-2/9)+(3/10+17/10)
=5/9+2
=2又5/9

回答2:

7/9+3/10-2/9+17/10
=5/9+2
=23/9