Applicare la formula: $\frac{a}{b}+c$$=\frac{a+cb}{b}$, dove $a/b+c=\frac{1}{4}+4.6$, $a=1$, $b=4$, $c=\frac{23}{5}$ e $a/b=\frac{1}{4}$

Applicare la formula: $ab$$=ab$, dove $ab=4.6\cdot 4$, $a=\frac{23}{5}$ e $b=4$

Applicare la formula: $a+b$$=a+b$, dove $a=1$, $b=\frac{92}{5}$ e $a+b=1+18.4$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=\frac{97}{5}$, $b=4$ e $a/b=\frac{19.4}{4}$