Equivalent Fractions and Common Denominators

This lesson focuses on rewriting fractions using common denominators. It explains how to find common denominators by identifying common multiples of the denominators. The lesson includes examples with fractions like 1/3 and 2/5, and 4/9 and 2/3, demonstrating how to rewrite them with a common denominator. Additionally, it covers adding fractions with different denominators by first converting them to equivalent fractions with a common denominator.

What is the main focus of Lesson 6.4?

• Exploring mixed numbers

• Learning about improper fractions

• Understanding equivalent fractions

• Rewriting fractions using common denominators

What is a common denominator?

• A number that is a multiple of both numerators

• A number that is a multiple of both denominators

• A number that is a factor of both numerators

• A number that is a factor of both denominators

How do you find a common denominator for 1/3 and 2/5?

• Multiply the numerators together

• Find a common multiple of the denominators

• Subtract the smaller denominator from the larger one

• Add the denominators together

What is the equivalent fraction of 1/3 with a denominator of 15?

• 3/15

• 15/15

• 1/15

• 5/15

What is the equivalent fraction of 2/5 with a denominator of 15?

• 10/15

• 2/15

• 4/15

• 6/15

What is the least common multiple of 9 and 3?

• 9

• 3

• 12

• 6

What is the equivalent fraction of 4/9 with a denominator of 9?

• 12/9

• 8/9

• 4/9

• 16/9

What is the equivalent fraction of 2/3 with a denominator of 9?

• 6/9

• 12/9

• 3/9

• 9/9

What is the least common denominator for 3/4 and 1/6?

• 18

• 24

• 12

• 6

What is the equivalent fraction of 3/4 with a denominator of 12?

• 12/12

• 3/12

• 9/12

• 6/12