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[tex]1\frac{2}{3}+3\frac{2}{3}=4\frac{4}{3}=5\frac{1}{3}\\\\4\frac{3}{5}+2\frac{1}{5}=6\frac{4}{5}\\\\4\frac{4}{7}+2\frac{5}{7}=6\frac{9}{7}=7\frac{2}{7}\\\\3\frac{7}{12}+4\frac{10}{12}=7\frac{17}{12}=8\frac{5}{12}\\\\\frac{12}{17}+3\frac{14}{17}=3\frac{26}{17}=4\frac{9}{17}\\\\3\frac{13}{16}-1\frac{7}{16}=2\frac{6}{16}=2\frac{3}{8}\\\\5\frac{7}{8}-2\frac{5}{8}=3\frac{2}{8}=3\frac{1}{4}\\\\19\frac{15}{17}-15\frac{6}{17}=4\frac{9}{17}[/tex]
[tex]16\frac{12}{13}-11\frac{5}{13}=5\frac{7}{13}\\\\Haslo:\ \ AMFITEATR[/tex]