多谢。初中孩子班上有个同学上一个课外数学班,春假时发给我孩子的。他们讨论了很久,没有做出来。
我验算了一下,N=938
2009/2014 + 2019/938
= 5950708/1889132
= (2X2X251X5927)/(2X2X7X19 X53X67)
= (251X5927)/(7X19X53X67) (in lowest common fraction)
Here A = 251X5927
B = 7X19X53X67.
But A is not a multiple of 1004.
需要化成最简分数后,分子是1004的倍数。
我验算了一下,N=938
2009/2014 + 2019/938
= 5950708/1889132
= (2X2X251X5927)/(2X2X7X19 X53X67)
= (251X5927)/(7X19X53X67) (in lowest common fraction)
Here A = 251X5927
B = 7X19X53X67.
But A is not a multiple of 1004.
需要化成最简分数后,分子是1004的倍数。