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Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

4. Add and Subtract Unlike Fractions

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Exercise 4 Page 294

To add or subtract fractions, they need to have the same denominator.

1/2

Practice makes perfect

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 4/5 - 3/10Since 10 is a multiple of 5, we can multiply both the numerator and denominator of 45 by 2 to create a common denominator.

4/5-3/10

a/b=a * 2/b * 2

4* 2/5* 2-3/10

Multiply

8/10-3/10

Now that we have a common denominator, we can proceed to simplifying the expression.

8/10-3/10

Subtract fractions

8-3/10

Subtract term

5/10

a/b=.a /5./.b /5.

1/2

Subchapter links

Guided Practice p.294

Independent Practice p.295-296

H.O.T. Problems p.296

Standardized Test Practice p.296-298

Extra Practice p.297

Common Core Review p.298