a)
[tex]4 \frac{1}{5} \div 14 = \frac{21}{5} \times \frac{1}{14} = \frac{21}{70} = \frac{3}{10} [/tex]
b)
[tex]2 \frac{1}{7} \div 2 \frac{2}{9} = \frac{15}{7} \div \frac{20}{9} = \frac{15}{7} \times \frac{9}{20} = \frac{3}{7} \times \frac{9}{4} = \frac{27}{28} [/tex]
Myślę że pomogłem ;)
