### Home > CC2 > Chapter 8 > Lesson 8.1.1 > Problem 8-9

8-9.

Simplify each expression. Homework Help ✎

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+ +(− ) −

· −1

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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.