小五數學功課
回答 (2)
2010-10-09 12:43 am
✔ 最佳答案
4/5/6+7/8/9+1/2/3=4+7+1+5/6+8/9+2/3
=12+(5*3+8*2+2*6)/18
=12+(15+16+12)/18
=12+(18+18+7)/18
=12+2+7/18
=14/7/18
2010-10-08 16:43:54 補充：
做完快D 訓!
參考: , everyone know
2010-10-09 1:19 am
4又5/6+7又8/9+1又2/3
=(4+7+1)+(15/18+16/18+12/18)
=12+43/18
=12+2又7/18
=14又7/18
=(4+7+1)+(15/18+16/18+12/18)
=12+43/18
=12+2又7/18
=14又7/18
收錄日期: 2021-04-23 23:26:29
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101008000051KK00077