請各位幫解決以下Mathes一題, 請詳細D, 明天交.(17/9)
1/2 - [ 3- (-1/3 + 1/4)] = ?
謝謝你們
急急急!!!!! Maths題???
2007-09-16 4:30 pm
回答 (5)
2007-09-16 4:53 pm
✔ 最佳答案
1/2 - [ 3- (-1/3 + 1/4)]= 1/2- [ 3- (-1/12)]
= 1/2- 37/12
6-37
= --------------
12
-31
= ------
12
7
= -2 ------
12
參考: choose me as the top answer please!!
2007-09-16 5:12 pm
1/2 - [ 3- (-1/3 + 1/4)]
=1/2-(3+1/3-1/4)
=1/2-3-1/3+1/4
=6/12-36/12-4/12+3/12
= -31/12
就是這樣
=1/2-(3+1/3-1/4)
=1/2-3-1/3+1/4
=6/12-36/12-4/12+3/12
= -31/12
就是這樣
2007-09-16 4:54 pm
1/2 - [ 3- (-1/3 + 1/4)]
= -31/12
= -31/12
2007-09-16 4:53 pm
1/2 - [ 3- (-1/3 + 1/4)]
=1/2-(3+1/3-1/4)
=1/2-3-1/3+1/4
=6/12-36/12-4/12+3/12
= -31/12 (ans)
=1/2-(3+1/3-1/4)
=1/2-3-1/3+1/4
=6/12-36/12-4/12+3/12
= -31/12 (ans)
2007-09-16 4:50 pm
1/2 - [ 3- (-1/3 + 1/4)]
=1/2-(3+1/3-1/4)
=1/2-3-1/3+1/4
=6/12-36/12-4/12+3/12
= -31/12
=1/2-(3+1/3-1/4)
=1/2-3-1/3+1/4
=6/12-36/12-4/12+3/12
= -31/12
收錄日期: 2021-04-13 13:31:01
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070916000051KK00667