Question

Помогите пожалуйста треба спростити вираз​

Answer 1

а)

$- 6.4 \times ( - \frac{3}{4} x ) \times ( - 1 \frac{1}{3}y) = - 6.4 \times \frac{3}{4} x \times \frac{4}{3}y = - 6.4xy$

б)

$5.25x \times ( - 1 \frac{1}{7}) \times ( - \frac{5}{36} b) = \frac{21}{4} x \times \frac{8}{7} \times \frac{5}{36} b = 6x \times \frac{5}{36} b = \frac{5}{6} bx$

в)

$- 0.001x \times ( - 66 \frac{2}{3} ) \times \frac{3}{5} = 0.001x \times \frac{200}{3} \times \frac{3}{5} = 0.001x \times 40 = 0.04x$

г)

$16 \frac{2}{3} x \times 0.1y \times 9 = \frac{50}{3} x \times \frac{1}{10} y \times 9 = \frac{5}{3} xy \times 9 = 15xy$