50. Найдите сумму: 1) $12\frac{3}{8}+6\frac{1}{6}$; 2) $3\frac{13}{15}+6\frac{7}{10}$; 3) $9\frac{3}{21}+4\frac{11}{14}$; 4) $8\frac{5}{9}+7\frac{3}{4}+12\frac{7}{12}$.

Question

Вопрос: $Фото задания: 50. Найдите сумму: 1) $12\frac{3}{8}+6\frac{1}{6}$; 2) $3\frac{13}{15}+6\frac{7}{10}$; 3)…$ Фото задания

Accepted Answer

$12\frac{3}{8}+6\frac{1}{6}=18+\frac{9}{24}+\frac{4}{24}=18\frac{13}{24}$.
$3\frac{13}{15}+6\frac{7}{10}=9+\frac{26}{30}+\frac{21}{30}=9+\frac{47}{30}=10\frac{17}{30}$.
$9\frac{3}{21}+4\frac{11}{14}=13+\frac{2}{14}+\frac{11}{14}=13\frac{13}{14}$.
$8\frac{5}{9}+7\frac{3}{4}+12\frac{7}{12}=27+\frac{20}{36}+\frac{27}{36}+\frac{21}{36}=27+\frac{68}{36}=28\frac{8}{9}$.

50. Найдите сумму: 1) \(12\frac{3}{8}+6\frac{1}{6}\); 2) \(3\frac{13}{15}+6\frac{7}{10}\); 3) \(9\frac{3}{21}+4\frac{11}{14}\); 4) \(8\frac{5}{9}+7\frac{3}{4}+12\frac{7}{12}\).