2.75加负二又四分之3+正一又八分之1+负十四又七分之5+负5.125

2.75加负二又四分之3+正一又八分之1+负十四又七分之5+负5.125
2025-04-08 19:46:19
推荐回答(1个)
回答1:

2.75加负二又四分之3+正一又八分之1+负十四又七分之5+负5.125
=2.75-2.75+1.125-4又5/7-5.125
=1.125-5.125-4又5/7
=-4-4又5/7
=-8又5/7