### Home > CC2MN > Chapter cc28 > Lesson cc28.1.1 > Problem 8-9

8-9.

Simplify each expression. Homework Help ✎

−

+ +(− ) −

· −1

·

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 a fraction greater than one may prove to be more helpful.