Here, we want to add both fractions together;
[tex]\begin{gathered} \frac{1}{6}\text{ + }\frac{1}{3} \\ \\ \text{The lowest common multiple here is 6} \\ \\ \text{Thus, we have;} \\ \frac{(1\text{ + 2)}}{6}\text{ = }\frac{3}{6}\text{ = }\frac{1}{2} \end{gathered}[/tex]