2005/2006+2001/2007+2001/2006怎么简便计算
问题描述：
2005/2006+2001/2007+2001/2006怎么简便计算
答
2005/2006+2001/2007+2001/2006
=1+2000/2006+2001/2007
=1+1000/1003+667/669
=2+1000/1003-2/669
=2+(669000-2000)/(669*1003)
=2+667000/(669000+2007)
=2又667000/671007 .