(2009x2010+2009)/2010怎么演化成2009x2011/2010

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(2009x2010+2009)/2010怎么演化成2009x2011/2010
x)02002044Ag }Ovv<3iϴg`J 6IEh/!>T] {:BtB@l ڀ9Xl Ҁ$hb`.:ڛy6g6ӈ"铗

(2009x2010+2009)/2010怎么演化成2009x2011/2010
(2009x2010+2009)/2010怎么演化成2009x2011/2010

(2009x2010+2009)/2010怎么演化成2009x2011/2010
2009x2010+2009=2009×(2010+1)=2009×2011

(2009x2010+2009)/2010
=[2009x(2010+1)]/2010
=2009x2011/2010

(2009x2010+2009)/2010
=2009+2009/2010
=2009/2010x(2010+1)
=2009x2011/2010

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