Odpowiedź:
[tex]a) \\ \frac{3}{4} = \frac{9}{12} \\ \\ \frac{2}{3} = \frac{6}{9} \\ \\ \frac{2}{5} = \frac{14}{35} \\ \\ b) \\ \frac{4}{9} = \frac{16}{36} \\ \\ \frac{5}{8} = \frac{25}{40} \\ \\ \frac{3}{7} = \frac{12}{28} \\ \\ [/tex]
[tex]c) \\ \frac{2}{3} = \frac{12}{18} \\ \\ \frac{3}{5} = \frac{9}{15} \\ \\ \frac{3}{10} = \frac{12}{40} \\ \\ d) \\ \frac{2}{9} = \frac{8}{36} \\ \\ \frac{3}{8} = \frac{9}{24} \\ \\ \frac{3}{13} = \frac{15}{65} [/tex]
