Chapter 2 - Real Numbers - Chapter 2 Review Problem Set - Page 88: 15

$= \frac{19}{24}$

We first create a common denominator, and then we add the numerators together to obtain: $\frac{3}{8} + \frac{5}{12}$ $= \frac{3(12)}{96} + \frac{5(8)}{96}$ $= \frac{36}{96} + \frac{40}{96}$ $= \frac{76}{96}$ $= \frac{19}{24}$