Răspuns :
fractii subunitare => a/5-iar a<5
fractiile sunt:0/5,1/5,2/5,3/5,4/5
fractiile sunt:0/5,1/5,2/5,3/5,4/5
[tex] \dfrac{1}{5} , \dfrac{2}{5} , \dfrac{3}{5} , \dfrac{4}{5} \\ \\ 4fractii[/tex]
[tex] \frac{0}{5} -imposibil[/tex]
[tex] \frac{0}{5} -imposibil[/tex]