### Home > ACC7 > Chapter 8 Unit 9 > Lesson CC3: 8.1.2 > Problem 8-22

8-22.

Simplify each expression.

Find a common denominator and simplify.

Remember that adding a negative number is essentially subtraction.

Multiply the numerators together and the denominators together.

Turning the first fraction into an fraction greater than one may prove to be more helpful.