377. Выполните вычитание: a) $$1 - \frac{3}{4}$$; б) $$2 - \frac{5}{6}$$; в) $$9 - \frac{11}{12}$$; г) $$7 - 1\frac{7}{8}$$; д) $$5 - 2\frac{2}{5}$$; e) $$6 - 5\frac{5}{8}$$; ж) $$8\frac{3}{11} - 4$$; з) $$5\frac{7}{15} - \frac{3}{20}$$; и) $$1\frac{5}{12} - \frac{9}{10}$$; к) $$6\frac{3}{10} - \frac{11}{15}$$; л) $$5\frac{7}{8} - \frac{9}{10}$$; м) $$7\frac{5}{12} - 3\frac{2}{9}$$; н) $$10\frac{1}{2} - 4\frac{9}{14}$$; о) $$7\frac{4}{7} - 5\frac{7}{9}$$; п) $$2\frac{3}{10} - 1\frac{11}{15}$$; p) $$5\frac{3}{8} - 3\frac{5}{6}$$;

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) $$6 - 5\frac{5}{8} = 6 - \frac{45}{8} = \frac{48}{8} - \frac{45}{8} = \frac{3}{8}$$

ж) $$8\frac{3}{11} - 4 = 4\frac{3}{11}$$

з) $$5\frac{7}{15} - \frac{3}{20} = 5\frac{28}{60} - \frac{9}{60} = 5\frac{19}{60}$$

и) $$1\frac{5}{12} - \frac{9}{10} = \frac{17}{12} - \frac{9}{10} = \frac{85}{60} - \frac{54}{60} = \frac{31}{60}$$

к) $$6\frac{3}{10} - \frac{11}{15} = 6\frac{9}{30} - \frac{22}{30} = 5\frac{39}{30} - \frac{22}{30} = 5\frac{17}{30}$$

л) $$5\frac{7}{8} - \frac{9}{10} = 5\frac{35}{40} - \frac{36}{40} = 4\frac{75}{40} - \frac{36}{40} = 4\frac{39}{40}$$

м) $$7\frac{5}{12} - 3\frac{2}{9} = 7\frac{15}{36} - 3\frac{8}{36} = 4\frac{7}{36}$$

н) $$10\frac{1}{2} - 4\frac{9}{14} = 10\frac{7}{14} - 4\frac{9}{14} = 9\frac{21}{14} - 4\frac{9}{14} = 5\frac{12}{14} = 5\frac{6}{7}$$

о) $$7\frac{4}{7} - 5\frac{7}{9} = 7\frac{36}{63} - 5\frac{49}{63} = 6\frac{99}{63} - 5\frac{49}{63} = 1\frac{50}{63}$$

п) $$2\frac{3}{10} - 1\frac{11}{15} = 2\frac{9}{30} - 1\frac{22}{30} = 1\frac{39}{30} - 1\frac{22}{30} = \frac{17}{30}$$

p) $$5\frac{3}{8} - 3\frac{5}{6} = 5\frac{9}{24} - 3\frac{20}{24} = 4\frac{33}{24} - 3\frac{20}{24} = 1\frac{13}{24}$$