Question

Помогите решить (2x):9=2 1/3:5 1/4

Answer 1

$2x \div 9 = \frac{7}{3} \times \frac{4}{21} = \frac{4}{9}$
$2x = \frac{4}{9} \times 9 = 4 \\ x = 4 \div 2 = 2$