Odpowiedź:
c) - 1 [tex]\frac{1}{3\\} - \frac{2}{9} + \frac{1}{6} = -\frac{4}{3} - \frac{2}{9} - \frac{1}{6} = -\frac{25}{18}[/tex] można wyciągnąć całości więc [tex]- 1\frac{7}{18}[/tex]
[tex]1\frac{1}{8} -2\frac{1}{4} - (-\frac{1}{2}) = \frac{9}{8} - \frac{9}{4} + \frac{1}{2} = -\frac{5}{8}[/tex]
-2,1 +[tex]\frac{1}{5} - 3 = -\frac{21}{10} + \frac{1}{5} - 3 = - \frac{49}{10} = -4\frac{9}{10}[/tex]
