Решим каждый пример пошагово:
- н) $$10\frac{1}{2} - 4\frac{9}{14} = 10\frac{7}{14} - 4\frac{9}{14} = 9\frac{21}{14} - 4\frac{9}{14} = (9-4) + (\frac{21}{14} - \frac{9}{14}) = 5 + \frac{12}{14} = 5\frac{6}{7}$$
Ответ: $$5\frac{6}{7}$$
- о) $$7\frac{4}{7} - 5\frac{7}{9} = 7\frac{36}{63} - 5\frac{49}{63} = 6\frac{99}{63} - 5\frac{49}{63} = (6-5) + (\frac{99}{63} - \frac{49}{63}) = 1 + \frac{50}{63} = 1\frac{50}{63}$$
Ответ: $$1\frac{50}{63}$$
- п) $$2\frac{3}{10} - 1\frac{11}{15} = 2\frac{9}{30} - 1\frac{22}{30} = 1\frac{39}{30} - 1\frac{22}{30} = (1-1) + (\frac{39}{30} - \frac{22}{30}) = 0 + \frac{17}{30} = \frac{17}{30}$$
Ответ: $$\frac{17}{30}$$
- р) $$5\frac{3}{8} - 3\frac{5}{6} = 5\frac{9}{24} - 3\frac{20}{24} = 4\frac{33}{24} - 3\frac{20}{24} = (4-3) + (\frac{33}{24} - \frac{20}{24}) = 1 + \frac{13}{24} = 1\frac{13}{24}$$
Ответ: $$1\frac{13}{24}$$