Выполните действие:
а) $\frac{9}{14} + \frac{3}{14}$;
б) $\frac{21}{50} + \frac{29}{50}$;
в) $2 + \frac{4}{17}$;
г) $17 + \frac{9}{13}$;
д) $6\frac{2}{3} - 1\frac{1}{3}$;
е) $18\frac{5}{11} - 7\frac{1}{11}$;
ж) $4 - \frac{3}{5}$;
з) $15 - \frac{6}{7}$;
и) $3\frac{1}{5} - 1\frac{3}{5}$;
к) $2\frac{4}{9} - 1\frac{7}{9}$;
л) $1\frac{5}{7} + \frac{6}{7}$;
м) $5\frac{8}{13} + 4\frac{7}{13}$.
$\frac{9}{14} + \frac{3}{14} = \frac{9 + 3}{14} = \frac{12}{14}$
$\frac{21}{50} + \frac{29}{50} = \frac{21 + 29}{50} = \frac{50}{50} = 1$
$2 + \frac{4}{17} = 2\frac{4}{17}$
$17 + \frac{9}{13} = 17\frac{9}{13}$
$6\frac{2}{3} - 1\frac{1}{3} = 6 - 1 + \frac{2}{3} - \frac{1}{3} = 5 + \frac{1}{3} = 5\frac{1}{3}$
$18\frac{5}{11} - 7\frac{1}{11} = 18 - 7 + \frac{5}{11} - \frac{1}{11} = 11 + \frac{4}{11} = 11\frac{4}{11}$
$4 - \frac{3}{5} = 3 + \frac{5}{5} - \frac{3}{5} = 3\frac{2}{5}$
$15 - \frac{6}{7} = 14 + \frac{7}{7} - \frac{6}{7} = 14\frac{1}{7}$
$3\frac{1}{5} - 1\frac{3}{5} = 2\frac{6}{5} - 1\frac{3}{5} = 2 - 1 + \frac{6}{5} - \frac{3}{5} = 1\frac{3}{5}$
$2\frac{4}{9} - 1\frac{7}{9} = 1\frac{13}{9} - 1\frac{7}{9} = 1 - 1 + \frac{13}{9} - \frac{7}{9} = \frac{6}{9}$
$1\frac{5}{7} + \frac{6}{7} = 1\frac{11}{7} = 2\frac{4}{7}$
$5\frac{8}{13} + 4\frac{7}{13} = 5 + 4 + \frac{8}{13} + \frac{7}{13} = 9\frac{15}{13} = 10\frac{2}{13}$
Пожауйста, оцените решение