Question

Divide 15m²n³ by 5m²n².

Answer 1

$$\begin{gathered} \frac{15m^2{n}^3}{5m^2{n}^2} \\ =\frac{15\times m\times m\times n\times n\times n}{5\times m\times m\times n\times n} \\ =3m^{(2-2)}{n}^{(3-2)} \\ =3m^0{n}^1 \\ =3n \end{gathered}$$