Risolvi la seguente espressione
$$\frac{72}{13}\times\left(\frac{9}{4}-\frac{5}{8}\right)=$$
$$\frac{72}{13}\times\frac{18-5}{8}=$$
$$\frac{72}{13}\times\frac{13}{8}=$$
$$9$$
$$\frac{72}{13}\times\left(\frac{9}{4}-\frac{5}{8}\right)=$$
$$\frac{72}{13}\times\frac{18-5}{8}=$$
$$\frac{72}{13}\times\frac{13}{8}=$$
$$9$$