Răspuns :
[tex] \frac{3}{28} \div \frac{1}{7} = \frac{3}{4 } \times \frac{5}{6} = \frac{5}{8} \div \frac{15}{16} = \frac{2}{3} \times \frac{9}{10} = \frac{3}{5} [/tex]
[tex] \frac{3}{28} \div \frac{1}{7} = \frac{3}{4 } \times \frac{5}{6} = \frac{5}{8} \div \frac{15}{16} = \frac{2}{3} \times \frac{9}{10} = \frac{3}{5} [/tex]