Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=m^5$, $a^m=m^6$, $a=m$, $a^m/a^n=\frac{55m^6n^7}{77m^5n^6}$, $m=6$ e $n=5$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=n^6$, $a^m=n^7$, $a=n$, $a^m/a^n=\frac{55mn^7}{77n^6}$, $m=7$ e $n=6$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=55mn$, $a=55$, $b=mn$, $c=77$ e $ab/c=\frac{55mn}{77}$