x : 1/2 : 1/6 = 2 2/5
x : 1/2 : 1/6 = 12/5
x : 1/2 = 12/5 x 1/6
x: 1/2 = 2/5
x = 2/5 x 1/2
x = 2/10
x = 1/5
\(x:\dfrac{1}{2}:\dfrac{1}{6}=2\dfrac{2}{5}\)
\(x:\dfrac{1}{2}=\dfrac{12}{5}\times\dfrac{1}{6}\)
\(x:\dfrac{1}{2}=\dfrac{2}{5}\)
\(x=\dfrac{2}{5}\times\dfrac{1}{2}\)
\(x=\dfrac{1}{5}\)