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Glencoe Math: Course 2, Volume 1 View details

3. Add and Subtract Like Fractions

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Exercise 18 Page 289

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

5/12

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. 7/12 - 2/12 Let's simplify the expression.

7/12-2/12

DiffToSum

a-b = a+(- b)

7/12+(- 2/12)

MoveNegFracToNum

Put minus sign in numerator

7/12+-2/12

AddFrac

Add fractions

7+(-2)/12

AddTerms

Add terms