(8⼀9+10⼀7+6⼀11)⼀(3⼀11+5⼀7+4⼀9)简便计算

2024-12-01 08:07:00
推荐回答(1个)
回答1:

(8/9+10/7+6/11)/(3/11+5/7+4/9)
=(4/9+5/7+3/11)×2/(3/11+5/7+4/9)
=2