Răspuns:
a) echiunitara: x=7
[tex] \frac{7}{7} [/tex]
b) subunitara: x=1,2,3,4,5,6
[tex] \frac{1}{7} \frac{ 2}{7} \frac{3}{7} \frac{4}{7} \frac{5}{7} \frac{6}{7} [/tex]
c) supraunitara: x= 8,9,10,11
[tex] \frac{8}{7} \frac{9}{7} \frac{10}{7} \frac{11}{7} [/tex]
