2008*(2007/2009)等于多少,

问题描述:

2008*(2007/2009)等于多少,

(2009-1)*(2007/2009)=2007-2007/2009

原式
=(2009-1)*(2007/2009)
=2007-2007/2009
=2007-(1-2/2009)
=2006+2/2009
=2006又2/2009