(5⼀8-1⼀6)×(5⼀9+1⼀3)用简便方法?

2025-04-05 07:14:59
推荐回答(1个)
回答1:

(5/8-1/6)×(5/9+1/3)
=(15/24-4/24)×(5/9+3/9)
=11/24×8/9
=11/3×1/9
=11/27