Question

срочно надо до званка 8 минут

Answer 1

1)

$\frac{15}{14} - \frac{4}{7} = \frac{15}{14} - \frac{8}{14} = \frac{7}{14} = \frac{1}{2}$

2)

$6 \times 2 \frac{2}{3} \times \frac{1}{2} = \frac{6}{1} \times \frac{8}{3} \times \frac{1}{2} = 8$

3)

$1 \frac{5}{9} \times \frac{9}{14} \times 3 = \frac{14}{9} \times \frac{9}{14} \times \frac{3}{1} = 3$

4) 8-3=5