Question

решите уравнение 14/15:y=21/25

Answer 1

$\frac{14}{15}:y = \frac{21}{25} \\ \\ y = \frac{14}{15} : \frac{21}{25} \\ \\ y = \frac{14*25}{15*21} \\ \\ y = \frac{2*5}{3*3} \\ \\ y = \frac{10}{9} \\ \\ y = 1 \frac{1}{9}$