Question

аоьвгьбоаобабоаоаббгк​

Answer 1

$\displaystyle \tt \frac{18m^3n^5}{7k}\div(9n^2)=\frac{18m^3n^5}{7k}\cdot \frac{1}{9n^2}=\bold{\frac{2m^3n^3}{7k}}$