Question

K:5,9=1,8:6... Помогите ​

Answer 1

$k:\frac{5}{9} =1,8:6\\\frac{9k}{5} =\frac{1,8}{6} \\\frac{9k}{5} =\frac{3}{10} \\5*3=9k*10\\15=90k\\k=\frac{15}{90} =\frac{1}{6}$

Ответ: 1/6