Odpowiedź:
1 a) [tex]\frac{3}{6} + \frac{2}{6} = \frac{5}{6}[/tex]
1b) [tex]\frac{2}{7} + \frac{2}{7} = \frac{4}{7}[/tex]
1c) [tex]\frac{5}{12} + \frac{5}{12} = \frac{10}{12}[/tex]
2a) [tex]\frac{3}{5} + \frac{1}{5} = \frac{4}{5}[/tex]
2b) [tex]\frac{6}{11} + \frac{4}{11} = \frac{10}{11}[/tex]
2c)[tex]\frac{5}{21} + \frac{8}{21} + \frac{4}{21} = \frac{17}{21}[/tex]
Szczegółowe wyjaśnienie:
