Question

пж помогите срочно ​

Answer 1

$(2.5 + 2 \frac{1}{3} ) \times ( - 5 \frac{1}{7}) \div 1 \frac{1}{3} = \frac{9}{14}$

1)

$- 2.5 + 2 \frac{1}{3} = \frac{25}{10} + \frac{7}{3} = - \frac{75}{30} + \frac{70}{30} = - \frac{5}{30} = - \frac{1}{6}$

2)

$- \frac{1}{6} \times ( - 5 \frac{1}{7} = \frac{1 \times 36}{6 \times 7} = \frac{6}{7}$

3)

$\frac{6}{7} \div 1 \frac{1}{3} = \frac{6}{7} \div \frac{4}{3} = \frac{6 \times 3}{7 \times 4} = \frac{9}{14}$

Ответ: 9/14