`y + 1/2 = 2/3 : 4/5`
`y + 1/2 = 5/6`
`y = 5/6 - 1/2`
`y = 1/3`.
\(y+\dfrac{1}{2}=\dfrac{2}{3}.\dfrac{5}{4}=\dfrac{5}{6}\Leftrightarrow y=\dfrac{5}{6}-\dfrac{1}{2}=\dfrac{2}{6}=\dfrac{1}{3}\)
\(y+\dfrac{1}{2}=\dfrac{2}{3}:\dfrac{4}{5}\)
\(y+\dfrac{1}{2}=\dfrac{2}{3}\times\dfrac{5}{4}\)
\(y+\dfrac{1}{2}=\dfrac{5}{6}\)
\(y=\dfrac{5}{6}-\dfrac{1}{2}\)
\(y=\dfrac{2}{6}\)
\(y=\dfrac{1}{3}\)
\(y+\dfrac{1}{2}=\dfrac{2}{3}:\dfrac{4}{5}\)
\(y+\dfrac{1}{2}=\dfrac{5}{6}\)
\(y=\dfrac{5}{6}-\dfrac{1}{2}\)
\(y=\dfrac{2}{6}\)
y +1/2=2/3:4/5
y +1/2= 5/6
y = 5/6 - 1/2
y = 1/3
y+1/2=2/3:4/5y+1/2=2/3:4/5
y+1/2=5/6y+1/2=5/6
y=5/6−1/2y=5/6−1/2
y=2/6