一十三分之一十一减一十二分之五加一十二分之二用竖式怎么表示?

2024-12-02 05:36:20
推荐回答(1个)
回答1:

11/13-5/12+2/12
=11/13-(5/12-2/12)
=11/13-3/12
=132/156-39/156
=93/156
=31/52