Chapter 2 - Real Numbers - 2.2 - Addition and Subtraction of Rational Numbers - Concept Quiz 2.2 - Page 56: 5

True

The only way that we can add or subtract fractions is if the fractions have a common denominator. Since $\frac{3}{8}$ and $\frac{1}{5}$ do not have the same denominator, we would need to find equivalent fractions with a common denominator in order to add them.