Odpowiedź:
[tex]a) \: \frac{5}{13} \times 5 \frac{1}{5} = \frac{5}{13} \times \frac{26}{5} = 2[/tex]
[tex]b)3 \frac{3}{4} \times ( - 2 \frac{2}{9} ) = \frac{15}{4} \times ( - \frac{20}{9} ) = - \frac{25}{3} = - 8 \frac{1}{3} [/tex]
[tex]c) \: - 2 \frac{1}{5} \times 4 \frac{6}{11} = - \frac{11}{5} \times \frac{50}{11} = - 10[/tex]
[tex]d) \: 1 \frac{7}{8} \times 5 \frac{1}{3} = \frac{15}{8} \times \frac{16}{3} = 10[/tex]
[tex]e) \: - 7 \frac{1}{5} \times ( - \frac{13}{27} ) = - \frac{36}{5} \times ( - \frac{13}{27} ) = \frac{52}{15} = 3 \frac{7}{15} [/tex]
[tex]f) \: 2 \frac{4}{7} \times ( - 3 \frac{8}{9} ) = \frac{18}{7} \times ( - \frac{35}{9} ) = - 10[/tex]
