6) $$ 24k^2 : \frac{12m^4k^2}{11p^3n} = 24k^2 \cdot \frac{11p^3n}{12m^4k^2} = \frac{24k^2 \cdot 11p^3n}{12m^4k^2} = \frac{2 \cdot 11p^3n}{m^4} = \frac{22p^3n}{m^4} $$
Ответ: $$ \frac{22p^3n}{m^4} $$