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Glencoe Math: Course 2, Volume 1 View details

3. Add and Subtract Like Fractions

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Exercise 6 Page 287

To add or subtract fractions with the same denominator, we add or subtract their numerators.

- 7/9 or -7/9

Practice makes perfect

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with the same denominator. - 5/9 -2/9 Let's simplify the expression.

- 5/9-2/9

DiffToSum

a-b = a+(- b)

- 5/9+(- 2/9)

MoveNegFracToNum

Put minus sign in numerator

-5/9+-2/9

AddFrac

Add fractions

-5+(-2)/9

AddTerms

Add terms