Odpowiedź:
a)
[tex] \frac{12}{8} = 1 \frac{4}{8} = 1 \frac{2}{4} [/tex]
[tex]3 \frac{11}{9} = 4 \frac{2}{9} [/tex]
[tex]11 \frac{11}{11} = 12[/tex]
[tex]11 \frac{14}{12} = 12 \frac{2}{12} = 12 \frac{1}{6} [/tex]
[tex]21 \frac{11}{7} = 22 \frac{4}{7} [/tex]
b)
[tex]4 \frac{4}{7} [/tex]
[tex]1 \frac{6}{11} [/tex]
[tex]6 \frac{5}{9} [/tex]
[tex]3 \frac{4}{5} [/tex]
[tex]4 \frac{6}{8} [/tex]
c)
[tex] \frac{18}{5} = 3 \frac{3}{5} [/tex]
[tex] \frac{8}{7} = 1\frac{1}{7} [/tex]
[tex] \frac{20}{21} [/tex]
[tex] - \frac{15}{32} [/tex]
[tex] \frac{36}{77} [/tex]
d)
[tex]4 \times \frac{7}{5} = \frac{28}{5} = 5 \frac{3}{5} [/tex]
[tex] \frac{3}{11} \times \frac{1}{2} = \frac{3}{22} [/tex]
[tex] \frac{1}{7} \times \frac{4}{1} = \frac{4}{7} [/tex]
[tex] - \frac{5}{8} \times \frac{3}{1} = - \frac{15}{8} = - 1 \frac{7}{8} [/tex]
[tex]( - \frac{2}{5} ) \times ( - \frac{5}{1} ) = \frac{10}{5} = 2[/tex]
Szczegółowe wyjaśnienie:
miało być w pamięci więc ważne sa wyniki, ale chciałem pokazać proces rozwiązania aby było zrozumiałe
