Answer
$\frac{7}{8}$
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 4 and 8.
4- 4, 8
8- 8
Therefore, the LCM of 4 and 8 is 8. Next, we can rewrite the two fractions as like fractions and add them together.
$\frac{3}{4}+\frac{1}{8}=\frac{3\times2}{4\times2}+\frac{1}{8}=\frac{6}{8}+\frac{1}{8}=\frac{6+1}{8}=\frac{7}{8}$
