2008/(2008+2008/2009)+1/2010简便运算

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2008/(2008+2008/2009)+1/2010简便运算
2008/(2008+2008/2009)+1/2010简便运算

2008/(2008+2008/2009)+1/2010简便运算
2009(2009乘3)

2008/(2008+2008/2009)+1/2010
=2008/[2008×(1+1/2009)]+1/2010
=1/(1+1/2009)+1/2010
=1/(2010/2009)+1/2010
=2009/2010+1/2010
=2010/2010
=1

=1/(1+1/2009)+1/2010
=2009/(2009+1)+1/2010
=2009/2010+1/2010
=1