Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=4$, $b=6$ e $a/b=\frac{4}{6}$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=3$, $b=2$, $c=2$, $a/b=\frac{3}{2}$, $f=3$, $c/f=\frac{2}{3}$ e $a/bc/f=\frac{3}{2}\cdot \frac{2}{3}$

Applicare la formula: $ab$$=ab$, dove $ab=2\cdot 3$, $a=2$ e $b=3$

Applicare la formula: $ab$$=ab$, dove $ab=3\cdot 2$, $a=3$ e $b=2$

Applicare la formula: $\frac{a}{a}$$=1$, dove $a=6$ e $a/a=\frac{6}{6}$