That's really an ugly mess. I'm sure it can be greatly simplified.
2 m² p⁻¹ q⁴ / m⁴ p⁻¹ q⁴ m² q⁻³
-- There's m² on top and also m² on the bottom. They can be cancelled.
-- There's p⁻¹ on top and also p⁻¹ on the bottom. They can be cancelled.
-- There's q⁴ on top and also q⁴ on the bottom. They can be cancelled.
So here's what we have left now:
2 / m⁴ q⁻³
That's IT ! After only some cancelling.
We can take the q⁻³ out of the denominator,
and make it q³ in the numerator.
And here's what we have now:
2 q³ / m⁴ .
And I think that's really the end.
It looks much better now.