#### Answer

Improper

#### Work Step by Step

A proper fraction is any fraction that is less than 1 in value. In order words, for a proper fraction, the numerator will be less than the denominator.
Therefore, $\frac{4}{3}$ is not a proper fraction, because the numerator of 4 is greater than the denominator of 3. Therefore, the fraction has a value of greater than 1. The fraction is improper.