Odpowiedź:
a)
[tex] \frac{1}{5} [/tex]
b)
[tex] \frac{13}{4} \times \frac{4}{5} \times \frac{15}{26} = \frac{13}{5} \times \frac{15}{26} = 1 \frac{1}{2} [/tex]
c)
[tex] \frac{1}{8} \times \frac{6}{5} \times \frac{16}{3} \times \frac{1}{2} = \frac{3}{20} \times \frac{16}{3} = \frac{4}{5} [/tex]
d)
[tex] \frac{18}{5} \times \frac{2}{3} \times \frac{15}{4} \times \frac{10}{9} = \frac{12}{5} \times \frac{15}{4} \times \frac{10}{9} = 9 \times \frac{10}{9} = 10[/tex]
e)
[tex] \frac{11}{3} \times \frac{8}{5} \times \frac{2}{11} \times \frac{25}{4} \times \frac{1}{10} \times \frac{30}{7} = \frac{88}{15} \times \frac{2}{11} \times \frac{25}{4} \times \frac{1}{10} \times \frac{30}{7} = \frac{16}{15} \times \frac{25}{4} \times \frac{1}{10} \times \frac{30}{7} = \frac{20}{3} \times \frac{1}{10} \times \frac{30}{7} = \frac{2}{3} \times \frac{30}{7} = \frac{20}{7} = 2 \frac{6}{7} [/tex]
