What is the simplified form of -24m⁵n⁴/8m⁻7n⁻2?

We have the following expression:
 -24m⁵n⁴ / 8m ^ ⁻7n ^ ⁻2
 We can rewrite using power properties:
 -24m⁵n⁴ / (8 ((1 / m ^ 7) (1 / n ^ 2)))
 Doing double c we have:
 (-24m⁵n⁴) * (m ^ 7) (n ^ 2) / 8
 Rewriting:
 (-3m⁵n⁴) * (m ^ 7) (n ^ 2)
 -3 (m ^ (5 + 7)) (n ^ (4 + 2))
 -3 (m ^ (12)) (n ^ (6))
 
 The simplified expression is:
 -3m ^ 12n ^ 6