Question: How to simplify this expression?

Hi all,

I am a new use of Maple. I have a expression :

2.560000000*10^(-30)*k1*(2.309486127*10^38*n-1.154743064*10^38-1.186994552*10^37*k2^2*n^2+2.373989104*10^37*k2^2*n+8.541613702*10^37*k2*n^2-1.154743064*10^38*n^2+7.119519043*10^37*n^2*k1^2+6.495962587*10^37*k1*n^2-1.293058266*10^38*k2*n^2*k1-1.186994552*10^37*k2^2-1.708322740*10^38*k2*n+1.293058266*10^38*k2*n*k1+8.541613702*10^37*k2-3.529088273*10^37*k1-2.966874313*10^37*k1*n)/(1.620847396*10^9*n-1.620847396*10^9)

I want to simplify it. Obviously, it can be simplifed by simplifying the coeffecient of each terms. 

When I use 'simplify' command in Maple 18, I couldn't got what I want. 

Any suggetstions?

Thanks in advance.

 

 

 

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