Question

Помагите решить пропорцию 2 2/5:x = 1 1/5:5

Answer 1

$2\frac{2}{5}=2,4$
$1\frac{1}{5}=1,2$
$\frac{2,4}{x}=\frac{1,2}{5}$
$1,2*x=2,4*5$
$1,2x=12$
$x=12:1,2$
$x=10$