# Chapter 2 - Real Numbers - 2.2 - Addition and Subtraction of Rational Numbers - Problem Set 2.2: 33

-31/7

#### Work Step by Step

In order to add or subtract fractions, we start by making a common denominator (bottom of the fraction). Thus, we multiply 4/1 (which is the same as 4) by 7/7 to obtain: $-\frac{28}{7}$-($\frac{3}{7}$)=-$\frac{31}{7}$.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.