\(\left(\frac{1}{3}-\frac{5}{6}\right)^2+\frac{5}{6}:2\)
= \(\left(\frac{-1}{2}\right)^2+\frac{5}{12}\)
= \(\frac{1}{4}+\frac{5}{12}=\frac{2}{3}\)
\(\left(\frac{1}{3}-\frac{5}{6}\right)^2+\frac{5}{6}\cdot\frac{1}{2}\)
\(=\left(-\frac{1}{2}\right)^2+\frac{5}{12}\)
\(=\frac{1}{4}+\frac{5}{12}\)
\(=\frac{8}{12}\)\(=\frac{2}{3}\)
(1/3 - 5/6)^2 + 5/6:2
=(2/6 - 5/6)^2 + 5/6 x 1/2
=(-1/2)^2 + 5/12
=1/4 + 5/12
=3/12 + 5/12
=8/12
=2/3