Odpowiedź:
a) [tex]2\frac{1}{6} - 1\frac{3}{4} = \frac{13}{6} - \frac{7}{4} = \frac{26}{12} - \frac{21}{12} = \frac{5}{12}[/tex]
b) [tex]1 \frac{1}{3} * 2 \frac{3}{4} = \frac{4}{3} *\frac{11}{4} = \frac{44}{12} = 3 \frac{8}{12} = 3\frac{2}{3}[/tex]
c) [tex]1 \frac{4}{5} : 1 \frac{3}{7} = \frac{9}{5} : \frac{10}{7} = \frac{5}{9} * \frac{7}{10} = \frac{7}{18}[/tex]
d) [tex]1\frac{6}{8} + 2\frac{1}{4} = \frac{14}{8} +\frac{9}{4} = \frac{14}{8} + \frac{18}{8} = \frac{32}{8} = 4[/tex]
Szczegółowe wyjaśnienie:*
