Question

1/4x:1/8=3.05:1 21/40
Решите пропорцию

Answer 1

Ответ:

$\frac{1}{4} x \div \frac{1}{8} = 3.05 \div 1 \frac{21}{40} \\ \frac{1}{4} x \times \frac{61}{40} = \frac{1}{8} \times 3.05 \\ \frac{61}{160} x = \frac{305}{800} \\ x = \frac{61}{160} \div \frac{61}{160} \\ x = 1$