Odpowiedź:
a) [tex]\frac{1}{2} -\frac{3}{6} = \frac{3}{6} -\frac{3}{6} =0[/tex]
[tex]\frac{1}{2} -\frac{3}{8} = \frac{4}{8} -\frac{3}{8} =\frac{1}{8}[/tex]
[tex]\frac{4}{5} -\frac{19}{25} = \frac{20}{25} -\frac{19}{25}=\frac{1}{25}[/tex]
b) [tex]2\frac{2}{3} -1\frac{4}{5} = \frac{8}{3} -\frac{9}{5} = \frac{40}{15} -\frac{27}{15}=\frac{13}{15}[/tex]
[tex]1\frac{2}{6} -\frac{2}{3} = \frac{8}{6} -\frac{4}{6} =\frac{4}{6} =\frac{2}{3}[/tex]
[tex]2\frac{1}{4} -1\frac{6}{8} = \frac{9}{4} - \frac{14}{8} = \frac{18}{8} - \frac{14}{8} = \frac{4}{8} =\frac{1}{2}[/tex]
Szczegółowe wyjaśnienie:
