Раскройте скобки:
1) $6 * (\frac{2}{3}a + \frac{5}{12}b)$;
2) $\frac{1}{3} * (\frac{9}{11}m - \frac{6}{7}n)$;
3) $12 * (\frac{3}{4}x + \frac{13}{18}y - \frac{1}{24}z)$;
4) $1\frac{1}{7} * (7p + \frac{21}{24}q - 1\frac{3}{4})$.
$6 * (\frac{2}{3}a + \frac{5}{12}b) = 6 * \frac{2}{3}a + 6 * \frac{5}{12}b = 4a + \frac{5}{2}b = 4a + 2\frac{1}{2}b$
$\frac{1}{3} * (\frac{9}{11}m - \frac{6}{7}n) = \frac{1}{3} * \frac{9}{11}m - \frac{1}{3} * \frac{6}{7}n = \frac{3}{11}m - \frac{2}{7}n$
$12 * (\frac{3}{4}x + \frac{13}{18}y - \frac{1}{24}z) = 12 * \frac{3}{4}x + 12 * \frac{13}{18}y - 12 * \frac{1}{24}z = 9x + \frac{26}{3}y - \frac{1}{2}z = 9x + 8\frac{2}{3}y - \frac{1}{2}z$
$1\frac{1}{7} * (7p + \frac{21}{24}q - 1\frac{3}{4}) = \frac{8}{7} * 7p + \frac{8}{7} * \frac{21}{24}q - \frac{8}{7} * \frac{7}{4} = 8p + q - 2$
Пожауйста, оцените решение
