Compute each sum or difference. Simplify if possible.
This problem is a checkpoint for addition and subtraction of fractions. It will be referred to as Checkpoint 3.
Ideally, at this point you are comfortable working with these types of problems and can solve them correctly. If you feel that you need more confidence when solving these types of problems, then review the Checkpoint 3 materials and try the practice problems provided. From this point on, you will be expected to do problems like these correctly and with confidence.
Answers and extra practice for the Checkpoint problems are located in the back of your printed textbook or in the Reference Tab of your eBook.