+2864 \(\frac{w^6}{z^8} \Rightarrow \frac{w*w*w*w*w*w}{z*z*z*z*z*z*z*z}\)
Then you make a fraction with w/z. \(\frac{w^6}{z^6}\), and also multiply it by 1/z^2
So you have a new expression of \(\frac{w^6}{z^6}*\frac{1}{z^2}\)
I don't know if that is what you are looking for...
