a)
[tex] \frac{1}{2} \div \frac{3}{4} = \frac{1}{2} \times \frac{4}{3} = \frac{1}{1} \times \frac{2}{3} = \frac{2}{3} [/tex]
[tex] \frac{4}{5} \div \frac{6}{7} = \frac{4}{5} \times \frac{7}{6} = \frac{2}{5} \times \frac{7}{3} = \frac{14}{15} [/tex]
[tex] \frac{5}{8} \div \frac{3}{10} = \frac{5}{8} \times \frac{10}{3} = \frac{5}{4} \times \frac{5}{3} = \frac{25}{12} = 2 \frac{1}{12} [/tex]
b)
[tex] \frac{5}{7} \div 1 \frac{2}{5} = \frac{5}{7} \div \frac{7}{5} = \frac{5}{7} \times \frac{5}{7} = \frac{25}{49} [/tex]
[tex] \frac{2}{5} \div \frac{4}{9} = \frac{2}{5} \times \frac{9}{4} = \frac{1}{5} \times \frac{9}{2} = \frac{9}{10} [/tex]
[tex] \frac{3}{4} \div \frac{1}{8} = \frac{3}{4} \times \frac{8}{1} = \frac{3}{1} \times \frac{2}{1} = 6[/tex]
Myślę że pomogłem ;)
