(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/08 20:01:53
(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)

(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)
(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1
/2008)

(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)
(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)
=[2010*2009+1)/2009]/【(2009*2010+1)/2010】+[(2008*2009+1)/2009]/【(2009*2008+1)/2008】
=2010/2009+2008/2009
=2