Question

Раскройте скобки:1/6*(12/17b-18/23c);
1 3/4*(4a+16/21b-2 2/3)

Answer 1

Ответ:

$\frac{1}{6} ( \frac{12}{17} b - \frac{18}{23} c) = \frac{2}{17} b - \frac{3}{23} c$

$1 \frac{3}{4} (4a + \frac{16}{21} b - 2 \frac{2}{3} ) = \frac{7}{4} (4a + \frac{16}{21} b - \frac{8}{3} ) = 7a + \frac{4}{3} b - \frac{14}{3} = 7a + 1 \frac{1}{3} b - 4 \frac{2}{3}$