[tex] - 0.08(3) = - \frac{83 - 8}{90} \\ = - \frac{75}{90} = - \frac{5}{6} [/tex]
[tex] - \frac{5}{6} + \frac{3}{4} + \frac{3}{8} [/tex]
[tex] - 0.75 = - \frac{75}{100} = - \frac{3}{4} [/tex]
Aducem la acelasi numitor(24):
[tex] \frac{ - 20 + 18 + 12}{24} [/tex]
[tex] \frac{10}{24} = \frac{5}{12} [/tex]
