Odpowiedź:
[tex]a) \frac{5}{7} \div 3 = \frac{5}{7} \times \frac{1}{3} = \frac{5}{21} \\ [/tex]
[tex]6 \div 2 \frac{1}{5} = 6 \times \frac{5}{11} = \frac{30}{11} = 2 \frac{8}{11} [/tex]
[tex]7 \frac{1}{6} \div 9 = \frac{43}{6} \times \frac{1}{9} = \frac{43}{54} [/tex]
