Вариант 1. Выполните вычитание: a) $$1-\frac{5}{8}$$ б) $$10-1\frac{1}{9}$$ в) $$9\frac{5}{6}-2\frac{3}{4}$$ г) $$3\frac{3}{10}-1\frac{7}{15}$$ д) $$7\frac{5}{18}-1\frac{7}{12}$$ е) $$5\frac{3}{24}-1\frac{1}{21}$$

Решение:

1. \( 1 - \frac{5}{8} = \frac{8}{8} - \frac{5}{8} = \frac{3}{8} \)
2. \( 10 - 1\frac{1}{9} = 9\frac{9}{9} - 1\frac{1}{9} = 8\frac{8}{9} \)
3. \( 9\frac{5}{6} - 2\frac{3}{4} = 9\frac{10}{12} - 2\frac{9}{12} = 7\frac{1}{12} \)
4. \( 3\frac{3}{10} - 1\frac{7}{15} = 3\frac{9}{30} - 1\frac{14}{30} = 2\frac{39}{30} - 1\frac{14}{30} = 1\frac{25}{30} = 1\frac{5}{6} \)
5. \( 7\frac{5}{18} - 1\frac{7}{12} = 7\frac{10}{36} - 1\frac{21}{36} = 6\frac{46}{36} - 1\frac{21}{36} = 5\frac{25}{36} \)
6. \( 5\frac{3}{24} - 1\frac{1}{21} = 5\frac{7}{56} - 1\frac{8}{56} = 4\frac{63}{56} - 1\frac{8}{56} = 3\frac{55}{56} \)