Question

(19/5 ÷ 20/15) × 2
Срочно!!!!

Answer 1

Ответ:

$( \frac{19}{5} \div \frac{20}{15} ) \times 2 = ( \frac{19 \times 15}{5 \times 20} ) \times 2 = ( \frac{19 \times 3}{1 \times 20} ) \times 2 = \frac{57}{20} \times \frac{2}{1} = \frac{57}{10} = 5 \frac{7}{10} = 5.7$