[tex]\frac{5}{6}-\frac{1}{3}\\\\find\ the\ LCD\ (Least\ Common\ Denominator)\\\\6=2\times3\ therefore\ LCD=6\\\\\frac{1}{3}=\frac{1\cdot2}{3\cdot2}=\frac{2}{6}\\\\\frac{5}{6}-\frac{1}{3}=\frac{5}{6}-\frac{2}{6}=\frac{5-2}{6}=\frac{3}{6}=\frac{3:3}{6:3}=\boxed{\frac{1}{2}}[/tex]