[一又三分之二加(負九分之五)]÷一又三分之一=？急需
回答 (2)
2013-01-01 6:35 pm
✔ 最佳答案
記住口訣，正正得正，正負得負，負負得正。 
2013-01-01 8:11 pm
[1+2/3+(-5/9)]/(1+1/3)
=[1+6/9-5/9]/(4/3)
=(10/9)/(4/3)
=(10/9)x(3/4)
=30/36
=5/6
對下答案
=[1+6/9-5/9]/(4/3)
=(10/9)/(4/3)
=(10/9)x(3/4)
=30/36
=5/6
對下答案
收錄日期: 2021-04-13 19:13:42
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121231000051KK00404