Выполни вычитание и действие с дробями.

Задание 2.179 a) $1 - \frac{3}{4} = \frac{4}{4} - \frac{3}{4} = \frac{1}{4}$ б) $2 - \frac{5}{6} = \frac{12}{6} - \frac{5}{6} = \frac{7}{6} = 1\frac{1}{6}$ в) $9 - \frac{11}{12} = \frac{108}{12} - \frac{11}{12} = \frac{97}{12} = 8\frac{1}{12}$ г) $7 - 1\frac{7}{8} = 7 - \frac{15}{8} = \frac{56}{8} - \frac{15}{8} = \frac{41}{8} = 5\frac{1}{8}$ д) $5 - 2\frac{2}{5} = 5 - \frac{12}{5} = \frac{25}{5} - \frac{12}{5} = \frac{13}{5} = 2\frac{3}{5}$ e) $6 - 5\frac{5}{8} = 6 - \frac{45}{8} = \frac{48}{8} - \frac{45}{8} = \frac{3}{8}$ Задание 2.180 a) $5\frac{7}{15} - \frac{3}{20} = 5\frac{28}{60} - \frac{9}{60} = 5\frac{19}{60}$ б) $3\frac{7}{9} - \frac{4}{15} = 3\frac{35}{45} - \frac{12}{45} = 3\frac{23}{45}$ в) $2\frac{9}{16} - \frac{3}{8} = 2\frac{9}{16} - \frac{6}{16} = 2\frac{3}{16}$ г) $4\frac{2}{5} - 1\frac{2}{7} = 4\frac{14}{35} - 1\frac{10}{35} = 3\frac{4}{35}$ д) $2\frac{2}{3} - 2\frac{3}{8} = \frac{8}{3} - \frac{19}{8} = \frac{64}{24} - \frac{57}{24} = \frac{7}{24}$ e) $7\frac{5}{12} - 3\frac{2}{9} = 7\frac{15}{36} - 3\frac{8}{36} = 4\frac{7}{36}$