Can someone help me to simplify?

 to simplify

(8x^-15 + 8y^-15)/((x^5+y^5)*y^-4)

Hello Guest!

$\large \frac{8x^{-15}+8y^{-15}}{(x^5+y^5) y^{-4}}$ 

$\large =(8x^{-15}+8y^{-15})\times \frac{y^4}{x^5+y^5}$

$\large =(\frac{1}{x^{15}}+\frac{1}{y^{15}})\times \frac{8y^4}{x^5+y^5}$   $More\ is\ not\ possible.$

  !