5) 11n⁴/12p⁶ * 24p⁸;

5) $$\frac{11n^4}{12p^6} \cdot 24p^8 = \frac{11n^4 \cdot 24p^8}{12p^6} = \frac{11n^4 \cdot 2p^8}{p^6} = 22n^4p^{8-6} = 22n^4p^2$$

Ответ: 22n⁴p²