15. Выполните сложение или вычитание.

15. Выполните сложение или вычитание.

\( \frac{7}{48} + \frac{11}{36} = \frac{21 + 44}{144} = \frac{65}{144} \)

\( \frac{26}{45} - \frac{16}{30} = \frac{52 - 48}{90} = \frac{4}{90} = \frac{2}{45} \)

\( \frac{13}{18} - \frac{5}{24} = \frac{52 - 15}{72} = \frac{37}{72} \)

\( 1 + \frac{3}{8} = \frac{8+3}{8} = \frac{11}{8} \)

\( 2 - \frac{5}{6} = \frac{12-5}{6} = \frac{7}{6} \)

\( 2 + \frac{3}{5} = \frac{10+3}{5} = \frac{13}{5} \)

\( 3 - \frac{10}{17} = \frac{51-10}{17} = \frac{41}{17} \)

\( 22 \frac{11}{15} - 22 = \frac{11}{15} \)

\( 12 \frac{9}{25} + 7 \frac{32}{50} = 12 \frac{18}{50} + 7 \frac{32}{50} = 19 \frac{50}{50} = 20 \)

\( 5 \frac{3}{20} - 4 \frac{7}{10} = 5 \frac{3}{20} - 4 \frac{14}{20} = \frac{103}{20} - \frac{94}{20} = \frac{9}{20} \)

\( 11 \frac{1}{4} + 3 \frac{7}{10} = 11 \frac{5}{20} + 3 \frac{14}{20} = 14 \frac{19}{20} \)

\( 40 \frac{3}{16} - 21 \frac{5}{8} = 40 \frac{3}{16} - 21 \frac{10}{16} = \frac{643}{16} - \frac{346}{16} = \frac{297}{16} \)

\( 5 \frac{3}{14} - 4 \frac{5}{7} = 5 \frac{3}{14} - 4 \frac{10}{14} = \frac{73}{14} - \frac{66}{14} = \frac{7}{14} = \frac{1}{2} \)

\( \frac{5}{13} + \frac{7}{26} = \frac{10+7}{26} = \frac{17}{26} \)

\( \frac{11}{63} - \frac{1}{9} = \frac{11-7}{63} = \frac{4}{63} \)

\( \frac{12}{15} - \frac{3}{5} = \frac{12-9}{15} = \frac{3}{15} = \frac{1}{5} \)

\( 5 + \frac{4}{9} = \frac{45+4}{9} = \frac{49}{9} \)

\( 4 - \frac{7}{11} = \frac{44-7}{11} = \frac{37}{11} \)

\( 2 + \frac{4}{7} = \frac{14+4}{7} = \frac{18}{7} \)

\( 5 - \frac{12}{15} = \frac{75-12}{15} = \frac{63}{15} = \frac{21}{5} \)

\( 13 \frac{11}{12} - 10 = 3 \frac{11}{12} \)

\( 15 \frac{7}{24} + 8 \frac{1}{3} = 15 \frac{7}{24} + 8 \frac{8}{24} = 23 \frac{15}{24} = 23 \frac{5}{8} \)

\( 4 \frac{1}{15} - 2 \frac{1}{30} = 4 \frac{2}{30} - 2 \frac{1}{30} = 2 \frac{1}{30} \)

\( 12 \frac{1}{5} + 2 \frac{5}{10} = 12 \frac{2}{10} + 2 \frac{5}{10} = 14 \frac{7}{10} \)

\( 9 - 7 \frac{1}{2} = 8 \frac{2}{2} - 7 \frac{1}{2} = 1 \frac{1}{2} \)

\( 1 \frac{5}{17} + 3 \frac{9}{34} = 1 \frac{10}{34} + 3 \frac{9}{34} = 4 \frac{19}{34} \)

\( \frac{7}{12} + \frac{4}{36} = \frac{21+4}{36} = \frac{25}{36} \)

\( \frac{15}{27} - \frac{1}{9} = \frac{15-3}{27} = \frac{12}{27} = \frac{4}{9} \)

\( \frac{11}{14} - \frac{1}{7} = \frac{11-2}{14} = \frac{9}{14} \)

\( 4 + \frac{2}{7} = \frac{28+2}{7} = \frac{30}{7} \)

\( 5 - \frac{4}{9} = \frac{45-4}{9} = \frac{41}{9} \)

\( 6 + \frac{2}{3} = \frac{18+2}{3} = \frac{20}{3} \)

\( 10 - \frac{15}{21} = \frac{210-15}{21} = \frac{195}{21} = \frac{65}{7} \)

\( 15 \frac{1}{7} - 5 = 10 \frac{1}{7} \)

\( 16 \frac{2}{9} + 2 \frac{1}{18} = 16 \frac{4}{18} + 2 \frac{1}{18} = 18 \frac{5}{18} \)

\( 3 \frac{4}{17} - 2 \frac{1}{34} = 3 \frac{8}{34} - 2 \frac{1}{34} = 1 \frac{7}{34} \)

\( 14 \frac{2}{3} + 3 \frac{4}{15} = 14 \frac{10}{15} + 3 \frac{4}{15} = 17 \frac{14}{15} \)

\( 10 \frac{5}{8} - 4 \frac{11}{16} = 10 \frac{10}{16} - 4 \frac{11}{16} = \frac{170}{16} - \frac{75}{16} = \frac{95}{16} \)

\( 2 \frac{1}{6} + 5 \frac{1}{3} = 2 \frac{1}{6} + 5 \frac{2}{6} = 7 \frac{3}{6} = 7 \frac{1}{2} \)