Odpowiedź:
[tex]a)\ \ \frac{2}{3}-\frac{5}{9}=\frac{6}{9}-\frac{5}{9}=\frac{1}{9}\\\\b)\ \ \frac{5}{6}-\frac{3}{8}=\frac{20}{24}-\frac{9}{24}=\frac{11}{24}\\\\c)\ \ 1\frac{1}{8}-\frac{3}{5}=1\frac{5}{40}-\frac{24}{40}=\frac{45}{40}-\frac{24}{40}=\frac{21}{40}\\\\d)\ \ 3\frac{2}{9}-\frac{11}{12}=3\frac{8}{36}-\frac{33}{36}=2\frac{44}{36}-\frac{33}{36}=2\frac{11}{36}\\\\e)\ \ 6\frac{1}{7}-2\frac{2}{3}=6\frac{3}{21}-2\frac{14}{21}=5\frac{24}{21}-2\frac{14}{21}=3\frac{10}{21}[/tex]
[tex]f)\ \ 4\frac{1}{12}-1\frac{3}{8}=4\frac{2}{24}-1\frac{9}{24}=3\frac{26}{24}-1\frac{9}{24}=2\frac{17}{24}[/tex]
