Adding Fractions with Unlike Denominators

What is the first step in adding fractions with unlike denominators?

• Find a common denominator

• Add the numerators

• Simplify the fractions

• Rename the fractions

What is the common denominator for 4/9 and 1/3?

• 9

• 3

• 12

• 6

What is the equivalent fraction for 1/3 with a common denominator of 9?

• 1/9

• 2/9

• 3/9

• 3/27

What is the sum of 4/9 and 1/3?

• 5/9

• 7/9

• 7/12

• 7/27

Why do we need a common denominator when adding fractions?

• To simplify the fractions

• To make the fractions easier to work with

• To change the value of the fractions

• To find the least common multiple

What is the common denominator for 3/10 and 2/6?

• 10

• 6

• 30

• 12

What is the equivalent fraction for 2/6 with a common denominator of 30?

• 2/30

• 5/30

• 10/30

• 10/60

What is the sum of 3/10 and 2/6?

• 5/10

• 5/30

• 19/30

• 19/60

When adding fractions, what do we do with the numerators?

• Multiply them

• Add them

• Divide them

• Subtract them

What is the simplified form of 19/30?

• 19/30

• 1/2

• 19/60

• 2/3