Question

Помогите решить
y:25/6=4/7:20

Answer 1

6y:25=4:140
6y:25=1/35
6y=25/35
6y=5/7
Y=5/42

Answer 2

$y \div \frac{25}{6} = \frac{4}{7} \div 20 \\ y \div \frac{25}{6} = \frac{1}{35} \\ y = \frac{1}{35} \times \frac{25}{6} \\ y = \frac{5}{42}$