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Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

3. Add and Subtract Like Fractions

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Exercise 29 Page 290

How can you compare two fractions with different denominator?

1/3 < 7/9

Practice makes perfect

In this exercise, we are given two fractions with different denominators. 1/3 ? 7/9To compare fractions with different denominators, we should first find a common denominator. Since 3 is a factor of 9, multiplying the numerator and denominator of 1 3 by 3 will give us a common denominator.

1/3

a/b=a * 3/b * 3

1*3/3*3

Multiply

3/9

Finally, we can make our comparison. Since 3 is less than 7, we know that the first value is less than the second value. 3/9 < 7/9 ⇔ 1/3 < 7/9

Subchapter links

Guided Practice p.286

Independent Practice p.287-288

H.O.T. Problems p.288

Standardized Test Practice p.288-290

Extra Practice p.289

Common Core Review p.290