Applicare la formula: $-\left(a+b\right)$$=-a-b$, dove $a=\frac{15}{8}$, $b=- \left(\frac{3}{2}-\frac{1}{3}\right)$, $-1.0=-1$ e $a+b=\frac{15}{8}- \left(\frac{3}{2}-\frac{1}{3}\right)$

Applicare la formula: $ab$$=ab$, dove $ab=- - \left(\frac{3}{2}-\frac{1}{3}\right)$, $a=-1$ e $b=-1$

Annullare i termini come $- \frac{15}{8}$ e $\frac{3}{2}-\frac{1}{3}$

Applicare la formula: $a+b$$=a+b$, dove $a=2$, $b=0$ e $a+b=2+0$