Найдите разность: a) $$1 - \frac{4}{5}$$; б) $$2 - \frac{3}{7}$$; в) $$7 - \frac{4}{13}$$; г) $$6 - 1\frac{5}{9}$$; д) $$9 - 3\frac{4}{7}$$; е) $$5 - 4\frac{2}{11}$$

a) $$1 - \frac{4}{5} = \frac{5}{5} - \frac{4}{5} = \frac{1}{5}$$ б) $$2 - \frac{3}{7} = \frac{14}{7} - \frac{3}{7} = \frac{11}{7} = 1\frac{4}{7}$$ в) $$7 - \frac{4}{13} = \frac{91}{13} - \frac{4}{13} = \frac{87}{13} = 6\frac{9}{13}$$ г) $$6 - 1\frac{5}{9} = 6 - \frac{14}{9} = \frac{54}{9} - \frac{14}{9} = \frac{40}{9} = 4\frac{4}{9}$$ д) $$9 - 3\frac{4}{7} = 9 - \frac{25}{7} = \frac{63}{7} - \frac{25}{7} = \frac{38}{7} = 5\frac{3}{7}$$ е) $$5 - 4\frac{2}{11} = 5 - \frac{46}{11} = \frac{55}{11} - \frac{46}{11} = \frac{9}{11}$$