### Home > MC2 > Chapter 5 > Lesson 5.2.1 > Problem 5-47

5-47.

**Simplify the following expressions. Homework Help ✎**

Change to addition.

Find a common denominator.

Find a common denominator.

See part (b).

Recall that adding a negative number is essentially subtraction.

Remember that when you subtract a negative number you are essentially adding it.

Remember, the solution will have the same sign as the larger number.