Răspuns:
[tex] \frac{1}{2} + ( \frac{2}{3} - \frac{1}{2} ) \times \frac{3}{2} + \frac{7}{6} \times \frac{1}{3} = [/tex]
[tex] \frac{1}{2} + \frac{1}{6} \times \frac{3}{2} + \frac{7}{18} = [/tex]
[tex] \frac{1}{2} + \frac{1}{4} + \frac{7}{18} = [/tex]
[tex] \frac{(18 + 9 + 14)}{36} = \frac{41}{36} = 1 \frac{5}{36} [/tex]