a)
[tex] \frac{2}{7} \div \frac{5}{14} = \frac{2}{7} \times \frac{14}{5} = \frac{2}{1} \times \frac{2}{5} = \frac{4}{5} [/tex]
Odpowiedź: A
b)
[tex]1 \frac{3}{4} \div 2 \frac{1}{2} = \frac{7}{4} \div \frac{5}{2} = \frac{7}{4} \times \frac{2}{5} = \frac{7}{2} \times \frac{1}{5} = \frac{7}{10} [/tex]
Odpowiedź: A
