Question

Номер-1144(а,б)
Помогите пж

Answer 1

а) $\frac{2}{7} * (-5 \frac{1}{4}) = \frac{2}{7} * (- \frac{21}{4})= -\frac{2*21}{7*4} = - \frac{3}{2}$

б) $-4 \frac{1}{2} * (-1 \frac{1}{3}) = - \frac{9}{2} * (-\frac{4}{3})= \frac{9*4}{2*3} = 6$