早教吧作业答案频道 -->数学-->
2007X2009X(1/2007X2008+1/2008X2009)等于多少啊,
题目详情
2007X2009X(1/2007X2008+1/2008X2009)等于多少啊,
▼优质解答
答案和解析
2007X2009（1/2007X2008+1/2008X2009）
=2007X2009X1/2007X2008+2007X2009X1/2008X2009
=2009X2008+2007/2008
=4016/2008
=2
=2007X2009X1/2007X2008+2007X2009X1/2008X2009
=2009X2008+2007/2008
=4016/2008
=2
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