Răspuns:
[tex]a) \: \: \frac{1}{10} \: \frac{2}{10} \: \frac{3}{10} \: \frac{4}{10} \: \frac{5}{10} \: \frac{6}{10} \: \frac{7}{10} \: \frac{8}{10} \: \frac{9}{10} [/tex]
[tex]b) \: \frac{2}{2} \: \frac{2}{3} \: \frac{2}{4} \: \frac{2}{5} \: \frac{2}{6} \: \frac{2}{7} \: \frac{2}{8} [/tex]
[tex]c) \: \frac{2}{2} \frac{4}{5} \frac{6}{9} \frac{3}{7} etc...[/tex]
