Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{15m^3n^2}{9m^2n}$, $a^n=n^2$, $a=n$ e $n=2$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=m^2$, $a^m=m^3$, $a=m$, $a^m/a^n=\frac{15m^3n}{9m^2}$, $m=3$ e $n=2$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=15mn$, $a=15$, $b=mn$, $c=9$ e $ab/c=\frac{15mn}{9}$