Question

помогите пожалуйста

Answer 1

$a = (-2 \frac{3}{23}) * (-3 \frac{2}{7}) : \frac{1}{4} = 224 \\ 1) (-2 \frac{3}{23})*(-3 \frac{2}{7}) = -\frac{2*23+3}{23} * (-\frac{3*7+2}{7}) = -\frac{49}{23} * (- \frac{24}{7} ) = \frac{49*24}{23*7} = \frac{7*24}{23} \\ = 56 \\ 2)56 : \frac{1}{4} = 56 * \frac{4}{1} = 56 * 4 = 224$