Answer
$\frac{5}{6}$
Work Step by Step
First, we must find the least common denominator (or the denominator that is the least common multiple of the original denominators) of 3 and 6.
3- 3, 6
6- 6
Therefore, the LCM of 3 and 6 is 6. Next, we can rewrite the two fractions as like fractions and add them together.
$\frac{1}{6}+\frac{2}{3}=\frac{1}{6}+\frac{2\times2}{3\times2}=\frac{1}{6}+\frac{4}{6}=\frac{1+4}{6}=\frac{5}{6}$