2007x2005/2006+2005x2007/2006简便运算!
1个回答

您好:

2007x2005/2006+2005x2007/2006

=(2006+1)x2005/2006+2005x(1+1/2006)

=2006x2005/2006+1x2005/2006+2005x1+2005x1/2006

=2005+2005/2006+2005+2005/2006

=4010+4010/2006

=4010+1+1002/1003

=4011又1002/1003

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