Răspuns:
[tex] \frac{3}{7} \div \frac{5}{8} = \frac{3}{7} \times \frac{8}{5} = \frac{24}{35} [/tex]
[tex] \frac{2}{3} \div \frac{2}{7} = \frac{2}{3} \times \frac{7}{2} = \frac{7}{3} [/tex]
[tex] \frac{5}{8} \div \frac{3}{4} = \frac{5}{8} \times \frac{4}{3} = \frac{5}{6} [/tex]
[tex] \frac{3}{8} \div \frac{2}{3} = \frac{3}{8} \times \frac{3}{2} = \frac{9}{16} [/tex]
[tex] \frac{4}{7} \div \frac{8}{9} = \frac{4}{7} \times \frac{9}{8} = \frac{9}{14} [/tex]
[tex] \frac{14}{39} \div \frac{21}{52} = \frac{14}{39} \times \frac{52}{21} = \frac{104}{117} [/tex]
