Răspuns:
[tex]a) \: \frac{ \frac{3}{5} }{ \frac{21}{10} } = \frac{3}{5} \times \frac{10}{21} = \frac{10}{5 \times 7} = \frac{2}{7} [/tex]
[tex]b) \: \frac{8}{13} \times \frac{26}{40} = \frac{2}{5} [/tex]
[tex]c) \: \frac{1}{1} \times \frac{5}{16} = \frac{5}{16} [/tex]
[tex]d) \: \frac{3}{1} \times \frac{11}{6} = \frac{11}{2} [/tex]
[tex]e) \: \frac{1}{7} \times \frac{14}{5} = \frac{2}{5} [/tex]
[tex]f) \: \frac{22}{7} \times \frac{21}{22} = 3
