Common Denominators

Multiple Choice

Why is it important to find common denominators when comparing fractions?

• It helps to add fractions easily.

• It allows you to compare fractions accurately.

• It makes fractions look the same.

• It helps to multiply fractions.

Open Ended

How can you use basic multiplication facts to multiply larger numbers?

Multiple Choice

Which of the following best describes a fraction?

• A part of a whole

• A whole number

• A decimal

• A percentage

Multiple Select

Select all statements that are true about the numerator in a fraction.

• It represents the number of parts we have

• It is always greater than the denominator

• It is the top number in a fraction

• It represents the total number of parts

Multiple Choice

When comparing fractions, what are the three possible relationships you can determine between them?

• Greater, less, equal

• Odd, even, prime

• Positive, negative, zero

• Whole, part, decimal

Multiple Choice

Why is it important for fractions to have the same size and shape when comparing them?

• Because different sizes and shapes can change the value of fractions

• Because it makes fractions easier to add

• Because fractions with different shapes are always equal

• Because fractions with different sizes are always greater

Multiple Select

Which of the following are multiples of both 3 and 5?

• 15

• 30

• 10

• 9

Multiple Choice

After multiplying 2/3 by 5/5, what is the new fraction?

• 10/15

• 5/6

• 6/15

• 2/5

Open Ended

Explain the process of finding a common denominator for the fractions 2/3 and 3/5.

Multiple Choice

Compare the fractions 2/3 and 3/5 by finding a common denominator. Which fraction is greater?

• 2/3 is greater than 3/5

• 3/5 is greater than 2/3

• 2/3 is equal to 3/5

• Cannot be determined

Multiple Choice

What is the common denominator for the fractions 2/3 and 3/5, and how do you convert each fraction to have this denominator?

• The common denominator is 8. 2/3 becomes 16/24 and 3/5 becomes 14/24.

• The common denominator is 15. 2/3 becomes 10/15 and 3/5 becomes 9/15.

• The common denominator is 10. 2/3 becomes 20/30 and 3/5 becomes 18/30.

• The common denominator is 5. 2/3 becomes 10/15 and 3/5 becomes 9/15.

Open Ended

Explain why finding a common denominator is important when comparing fractions.

Multiple Select

Which of the following statements are true about comparing fractions using common denominators?

• Fractions must have the same denominator to be compared directly.

• Multiplying both the numerator and denominator by the same number does not change the value of the fraction.

• The fraction with the larger numerator is always greater when denominators are the same.

• You can compare fractions without finding a common denominator.

Open Ended

Compare the fractions 4/7 and 1/3 using >, <, or = by finding a common denominator.

Multiple Choice

What is the purpose of finding common denominators when comparing fractions?

• To add fractions together

• To subtract fractions

• To compare fractions accurately

• To simplify fractions