Applicare la formula: $ab$$=ab$, dove $ab=3\cdot -24.2\cdot \left(\frac{1}{4}\right)$, $a=3$ e $b=-\frac{121}{5}$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=1$, $b=4$, $c=-\frac{363}{5}$, $a/b=\frac{1}{4}$ e $ca/b=-72.6\cdot \left(\frac{1}{4}\right)$

Applicare la formula: $ab$$=ab$, dove $ab=-72.6\cdot 1$, $a=-\frac{363}{5}$ e $b=1$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=-\frac{363}{5}$, $b=4$ e $a/b=-\frac{72.6}{4}$