5.301 Найдите сумму: 7 a) 6+8; 13' 6) 12 + 195; 24' 4 в) 5+8 15 25 г) 13+7.

a) $$6 + \frac{7}{13} + 8 = 6 + 8 + \frac{7}{13} = 14 + \frac{7}{13} = 14\frac{7}{13}$$

б) $$12 + 19\frac{5}{24} = 12 + 19 + \frac{5}{24} = 31 + \frac{5}{24} = 31\frac{5}{24}$$

в) $$5\frac{7}{15} + 8\frac{4}{15} = (5+8) + (\frac{7}{15} + \frac{4}{15}) = 13 + \frac{7+4}{15} = 13 + \frac{11}{15} = 13\frac{11}{15}$$

г) $$13\frac{5}{101} + 7\frac{25}{101} = (13 + 7) + (\frac{5}{101} + \frac{25}{101}) = 20 + \frac{5+25}{101} = 20 + \frac{30}{101} = 20\frac{30}{101}$$

Ответ: a) $$14\frac{7}{13}$$; б) $$31\frac{5}{24}$$; в) $$13\frac{11}{15}$$; г) $$20\frac{30}{101}$$