5.301 Найдите сумму: a) 6+8\frac{7}{13}; 6) 12+19\frac{5}{24}; B) 5\frac{7}{15} + 8\frac{4}{15}; г) 13\frac{5}{101} +7\frac{25}{101}; e) 3\frac{9}{13} + 4\frac{8}{13}.

a) $$6 + 8\frac{7}{13} = 14\frac{7}{13}$$ Ответ: $$14\frac{7}{13}$$ б) $$12+19\frac{5}{24} = 31\frac{5}{24}$$ Ответ: $$31\frac{5}{24}$$ в) $$5\frac{7}{15} + 8\frac{4}{15} = (5+8) + (\frac{7}{15} + \frac{4}{15}) = 13 + \frac{11}{15} = 13\frac{11}{15}$$ Ответ: $$13\frac{11}{15}$$ г) $$13\frac{5}{101} +7\frac{25}{101} = (13+7) + (\frac{5}{101} + \frac{25}{101}) = 20 + \frac{30}{101} = 20\frac{30}{101}$$ Ответ: $$20\frac{30}{101}$$ е) $$3\frac{9}{13} + 4\frac{8}{13} = (3+4) + (\frac{9}{13} + \frac{8}{13}) = 7 + \frac{17}{13} = 7 + 1\frac{4}{13} = 8\frac{4}{13}$$ Ответ: $$8\frac{4}{13}$$