Вычислите сумму:
а) $3\frac{3}{4} + \frac{1}{5}$;
б) $7\frac{9}{20} + \frac{7}{30}$;
в) $4\frac{13}{25} + \frac{2}{15}$;
г) $6\frac{1}{12} + \frac{1}{18}$;
д) $5\frac{3}{10} + \frac{11}{15}$;
е) $9\frac{5}{24} + \frac{35}{36}$.
$3\frac{3}{4} + \frac{1}{5} = 3 + \frac{15 + 4}{20} = 3\frac{19}{20}$
$7\frac{9}{20} + \frac{7}{30} = 7 + \frac{27 + 14}{60} = 7\frac{41}{60}$
$4\frac{13}{25} + \frac{2}{15} = 4 + \frac{39 + 10}{75} = 4\frac{49}{75}$
$6\frac{1}{12} + \frac{1}{18} = 6 + \frac{3 + 2}{36} = 6\frac{5}{36}$
$5\frac{3}{10} + \frac{11}{15} = 5 + \frac{9 + 22}{30} = 5\frac{31}{30} = 5 + 1\frac{1}{30} = 6\frac{1}{30}$
$9\frac{5}{24} + \frac{35}{36} = 9\frac{15 + 70}{72} = 9\frac{85}{72} = 9 + 1\frac{13}{72} = 10\frac{13}{72}$
Пожауйста, оцените решение
