Adding Fractions with Unlike Denominators

The video tutorial explains how to add two fractions with unlike denominators. It begins by finding a common denominator, either by listing multiples or multiplying the denominators. Next, it demonstrates creating equivalent fractions with this common denominator. Finally, it shows how to add these equivalent fractions. The process is summarized in three steps: finding a common denominator, generating equivalent fractions, and adding them together.

Why is it necessary to find a common denominator when adding fractions with unlike denominators?

• To convert fractions into whole numbers

• To make the numerators equal

• To simplify the fractions

• To ensure the fractions have the same base for addition

What is the first step in finding a common denominator for fractions 2/3 and 3/8?

• Multiply the numerators

• Convert the fractions to decimals

• List the multiples of each denominator

• Add the fractions directly

Which of the following is a common multiple of 3 and 8?

• 12

• 16

• 24

• 18

How do you convert 2/3 to an equivalent fraction with a denominator of 24?

• Multiply both numerator and denominator by 8

• Multiply both numerator and denominator by 3

• Subtract 3 from the denominator

• Add 8 to the numerator

What is the equivalent fraction of 3/8 with a denominator of 24?

• 9/24

• 8/24

• 12/24

• 6/24

Once the fractions have the same denominator, what is the next step?

• Divide the numerators

• Multiply the numerators

• Add the numerators

• Subtract the numerators

What is the sum of 16/24 and 9/24?

• 25/24

• 24/24

• 23/24

• 26/24

What is the first step in the three-step process for adding fractions with unlike denominators?

• Find a common denominator

• Subtract the fractions

• Add the numerators

• Convert to decimals

What is the second step in the three-step process for adding fractions with unlike denominators?

• Find equivalent fractions

• Multiply the fractions

• Divide the fractions

• Add the fractions

What is the final step in the three-step process for adding fractions with unlike denominators?

• Subtract the fractions

• Convert to decimals

• Multiply the fractions

• Add the equivalent fractions