I want to ask Maths
回答 (1)
2007-09-04 1:26 am
✔ 最佳答案
..-(11/4-[2/7-(3/4+2/7-47/11)+8/11]) <=====是不是有括號=-(11/4-[2/7-(231/308+88/308-1316/308)+8/11])
=-(11/4-[2/7-(-997/308)+8/11])
=-(11/4-[2/7+997/308+8/11])
=-(11/4-[88/308+997/308+224/308])
=-(11/4-[1309/308])
=-(847/308-1309/308)
=-(-462/308)
=3/2 <=====答案
......//
收錄日期: 2021-04-29 18:59:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070903000051KK02163