Odpowiedź:
[tex]\frac{3}{5}+1\frac{4}{5}=1\frac{7}{5}=2\frac{2}{5}[/tex]
[tex]1\frac{1}{4}+2\frac{3}{5}=1\frac{5}{20}+2\frac{12}{20}=3\frac{17}{20}[/tex]
[tex]1\frac{3}{11}-\frac{6}{11}=\frac{14}{11}-\frac{6}{11}=\frac{8}{11}[/tex]
[tex]5\frac{5}{6}-2\frac{2}{3}=5\frac{5}{6}-2\frac{4}{6}=3\frac{1}{6}[/tex]
Szczegółowe wyjaśnienie:
