а) $\frac{5}{24} + \frac{3}{8}$;
б) $\frac{7}{10} - \frac{2}{5}$;
в) $\frac{3}{4} - \frac{2}{5}$;
г) $\frac{8}{11} + \frac{1}{2}$.
$\frac{5}{24} + \frac{3}{8} = \frac{5 + 3 * 3}{24} = \frac{5 + 9}{24} = \frac{14}{24} = \frac{7}{12}$
$\frac{7}{10} - \frac{2}{5} = \frac{7 - 2 * 2}{10} = \frac{7 - 4}{10} = \frac{3}{10}$
$\frac{3}{4} - \frac{2}{5} = \frac{3 * 5 - 2 * 4}{20} = \frac{15 - 8}{20} = \frac{7}{20}$
$\frac{8}{11} + \frac{1}{2} = \frac{8 * 2 + 1 * 11}{22} = \frac{16 + 11}{22} = \frac{27}{22} = 1\frac{5}{22}$
Пожауйста, оцените решение
