1) (-1/2)+1/2
2) (-1/2)-(-1/2)
3) 1/5+(-1/3)
4) 1/20-(-2/3)
5) -1/8+(-1/6)
6) (-2)+(-1/3)-5又1/3
7) 8+(-1/4)-(-3/4).
8) (-6)+(4又2/3)-(-1/3)
9) (-3/16)+(-1/5)-(-1/3)
10) (-1/5)+(-5/6)-2/3
唔該!!!!!!!``maths題~~~~+ - 數.......求下你地牙@@唔該''''天日要交la
2008-07-31 11:15 pm
回答 (1)
2008-07-31 11:34 pm
✔ 最佳答案
1) (-1/2) 1/2=0
2) (-1/2)-(-1/2)
=0
3) 1/5 (-1/3)
=-2/15
4) 1/20-(-2/3)
=43/60
5) -1/8 (-1/6)
=-7/24
6) (-2) (-1/3)-5又1/3
=-7又2/3
7) 8 (-1/4)-(-3/4)
=8又1/2
8) (-6) (4又2/3)-(-1/3)
=-1
9) (-3/6) (-1/5)-(-1/3)
=-11/30
10) (-1/5) (-5/6)-2/3
=-1又11/30
參考: me
收錄日期: 2021-04-13 15:54:13
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https://hk.answers.yahoo.com/question/index?qid=20080731000051KK01713