-1⼀13÷(3⼀14-2⼀9+117-1⼀3)怎么算

2025-05-10 21:21:16
推荐回答(1个)
回答1:

-1/13÷(3/14-2/9+1/7-1/3)
=-1/13÷(5/14-5/9)
=-1/13÷5÷(9-14)×(9×14)
=126/325