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Yahoo!奇摩知識+ - 分類問答 - 教育學習 - 已解決
Yahoo!奇摩知識+ - 分類問答 - 教育學習 - 已解決 
Madesmith

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暑假國數大滿貫不會寫。 急（20點）一定要給對
Aug 9th 2013, 09:25

8\9-2\3=2/9

4\5-1\3=7/15

4又7\9-13\4=55/36

9\16+12\16=21/16

3又7\12+2又5\6=6又5/12

7又3\5+11\15=8又1/3

2又5\8+7\16-1又3\4=1又5/16

9又1\18-2又14\36+3又5\6=10又1/2

男生5人有3包色紙女生7人有5包色紙女生每人比男生多分得幾包色紙？
5/7-3/5=4/35
ans:4/35包

一件工程甲做了2\7乙做了1\4還剩下多少沒有做完？
1-2/7-1/4=13/28
ans:13/28沒做完

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