Answer :
To find the sum we need to remember the general rule to add fractions:
[tex]\frac{a}{b}+\frac{c}{d}=\frac{ad+bc}{bd}[/tex]Then:
[tex]\begin{gathered} \frac{1}{4}+\frac{3}{8}=\frac{8+12}{32} \\ =\frac{20}{32} \\ =\frac{5}{8} \end{gathered}[/tex]Therefore the answer is 5/8.