### Home > CC2MN > Chapter 7 > Lesson 7.1.1 > Problem 7-8

7-8.

Simplify the following expressions.

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.