Question

последние балы пж көмек help​

Answer 1

Ответ:

$- 2 \frac{2}{3} - 2 \frac{4}{21} = \frac{ - 56 - 46}{21} = - \frac{102}{21} = - \frac{34}{7} = - 4 \frac{6}{7} \\ - 4 \frac{6}{7} \div \frac{17}{21} = - \frac{34 \times 21}{7 \times 17} = - 6 \\ 5.1 \div ( - 0.3) = - 17 \\ - 6 - 17 = - 23$