Adding Fractions with Different Denominators Quiz

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

• Add the numerators directly.

• Multiply the fractions by each other.

• Find the least common multiple of the denominators.

• Subtract the smaller denominator from the larger one.

When finding the least common multiple, what are you looking for?

• The difference between the denominators.

• The smallest number that both denominators divide into.

• The largest number that divides both denominators.

• The sum of the denominators.

In the example of two-fifths plus one-half, what is the least common multiple of the denominators?

• 15

• 5

• 10

• 2

After finding the least common multiple, what is the next step in adding fractions?

• Add the numerators and denominators.

• Convert the fractions to have the same denominator.

• Subtract the numerators.

• Multiply the numerators.

In the example of one-fourth plus two-thirds, what is the least common multiple of the denominators?

• 16

• 12

• 8

• 20

What is the result of adding one-fourth and two-thirds after converting to the same denominator?

• 9/12

• 11/12

• 7/12

• 5/12

In the example of three-sixths plus one-fifth, what is the least common multiple of the denominators?

• 25

• 20

• 15

• 30

What is the final reduced form of the sum of three-sixths and one-fifth?

• 2/3

• 7/10

• 21/30

• 3/5

Why is it important to check if the final fraction can be reduced?

• To make the fraction easier to understand.

• To ensure the fraction is in its simplest form.

• To change the fraction to a decimal.

• To add more fractions to it.

What should you do if you want more practice with adding fractions with unlike denominators?

• Memorize the examples given.

• Try adding fractions with the same denominators.

• Click the link for additional practice problems.

• Watch the video again.