Understanding Fractions and Common Denominators

Why is it important to find a common denominator when comparing fractions?

• To make the fractions look similar

• To convert fractions into decimals

• To compare the fractions accurately

• To easily add the fractions

What is the smallest common denominator for the fractions 2/3, 5/8, and 3/4?

• 16

• 32

• 24

• 12

Which of the following is a multiple of 8?

• 10

• 16

• 22

• 30

After rewriting the fractions with a common denominator, which fraction is the largest?

• 3/4

• 5/8

• 2/3

• 1/2

How does the size of the numerator affect the size of the fraction when denominators are the same?

• The numerator does not affect the size

• The fraction with the larger numerator is larger

• The fraction with the numerator closest to zero is larger

• The fraction with the smaller numerator is larger