Răspuns:
[tex] \frac{13}{6} + \frac{2}{6} = \frac{15}{6} [/tex]
[tex]\frac{3}{6} + \frac{2}{6} = \frac{5}{6} [/tex]
[tex] \frac{6}{6} + \frac{2}{6} = \frac{8}{6} [/tex]
[tex] \frac{9}{6} + \frac{2}{6} = \frac{11}{6} [/tex]
