Răspuns:
[tex]5 - > \frac{1}{5} \\ \frac{1}{7} - > \frac{1}{ \frac{1}{7} } - > 7 \\ 3 - > \frac{1}{3} \\ \frac{2}{3} - > \frac{1}{ \frac{2}{3} } - > \frac{3}{2} \\ \frac{7}{5} - > \frac{1}{ \frac{7}{5} } - > \frac{5}{7} \\ \frac{11}{12} - > \frac{1}{ \frac{11}{12} } -> \frac{12}{11} \\ 3 \frac{3}{4} = \frac{15}{4} - > \frac{1}{ \frac{15}{4} } - > \frac{4}{15} \\ 5 \frac{3}{4} = \frac{23}{4} - > \frac{1}{ \frac{23}{4} } - > \frac{4}{23} \\ 8 \frac{6}{7} = \frac{62}{7} - > \frac{1}{ \frac{62}{7} } - > \frac{7}{62} [/tex]
