Finding Equivalent Fractions and Common Denominators

The video tutorial explains how to compare fractions without using models by finding a common denominator. It introduces methods to find common denominators, such as multiplying denominators or using the least common multiple. Examples include comparing two-thirds with three-fifths and two-thirds with five-sixths. The tutorial emphasizes the importance of using the least common multiple for more efficient comparison and concludes with encouragement for students.

Why is it important to have a common denominator when comparing fractions?

• To make the fractions look similar

• To ensure the fractions have the same number of parts

• To make the fractions easier to add

• To change the value of the fractions

What is the first step in comparing fractions without models?

• Subtract the fractions

• Add the fractions

• Find a common denominator

• Find a common numerator

What is the shortcut method for finding a common denominator?

• Adding the denominators

• Multiplying the denominators

• Adding the numerators

• Multiplying the numerators

What is the equivalent fraction of two-thirds with a denominator of 15?

• 12/15

• 9/15

• 10/15

• 8/15

Which fraction is greater: two-thirds or three-fifths?

• They are equal

• Three-fifths

• Two-thirds

• Cannot be determined

What is the equivalent fraction of three-fifths with a denominator of 15?

• 8/15

• 12/15

• 10/15

• 9/15

What is the least common multiple of 3 and 5?

• 25

• 20

• 10

• 15

What is the least common multiple of 3 and 6?

• 6

• 12

• 9

• 18

What is the equivalent fraction of two-thirds with a denominator of 6?

• 4/6

• 5/6

• 3/6

• 2/6

Which fraction is greater: four-sixths or five-sixths?

• Five-sixths

• Four-sixths

• They are equal

• Cannot be determined