Приведите подобные слагаемые:
а) $\frac{5}{12}a + \frac{3}{4}a$;
б) $-\frac{5}{12}a + \frac{3}{4}a$;
в) $-\frac{5}{12}a - \frac{3}{4}a$;
г) $\frac{5}{12}a - \frac{3}{4}a$.
$\frac{5}{12}a + \frac{3}{4}a = \frac{5}{12}a + \frac{9}{12}a = \frac{14}{12}a = \frac{7}{6}a = 1\frac{1}{6}a$
$-\frac{5}{12}a + \frac{3}{4}a = -\frac{5}{12}a + \frac{9}{12}a = \frac{4}{12}a = \frac{1}{3}a$
$-\frac{5}{12}a - \frac{3}{4}a = -\frac{5}{12}a - \frac{9}{12}a = -\frac{14}{12}a = -\frac{7}{6}a = -1\frac{1}{6}a$
$\frac{5}{12}a - \frac{3}{4}a = \frac{5}{12}a - \frac{9}{12}a = -\frac{4}{12}a = -\frac{1}{3}a$
Пожауйста, оцените решение
