Question

Помогите пожалуста!!!!

Answer 1

Ответ:

$2 \frac{2}{3} \div 3 \frac{17}{21} = \\ = \frac{8}{3} \div \frac{80}{21} = \\ = \frac{8}{3} \times \frac{21}{80} = \frac{7}{10} = \\ = 0.7$