Вычислите:
а) $\frac{15}{16} - \frac{5}{8}$;
б) $\frac{4}{9} + \frac{1}{27}$;
в) $\frac{5}{12} - \frac{7}{8}$;
г) $-\frac{3}{4} + \frac{2}{3}$.
$\frac{15}{16} - \frac{5}{8} = \frac{15}{16} - \frac{10}{16} = \frac{5}{16}$
$\frac{4}{9} + \frac{1}{27} = \frac{12}{27} + \frac{1}{27} = \frac{13}{27}$
$\frac{5}{12} - \frac{7}{8} = \frac{10}{24} - \frac{21}{24} = -\frac{11}{24}$
$-\frac{3}{4} + \frac{2}{3} = -\frac{9}{12} + \frac{8}{12} = -\frac{1}{12}$
Пожауйста, оцените решение
