Comparing and Adjusting Fractions

The video tutorial explains how to use the least common multiple (LCM) to compare fractions. It begins by introducing the concept and then demonstrates finding multiples of the denominators 4 and 5. The tutorial identifies 20 as the LCM and shows how to adjust the fractions to have a common denominator. Finally, it compares the adjusted fractions and concludes with an invitation for questions.

What mathematical concept is used to compare fractions in this video?

• Greatest Common Divisor

• Least Common Multiple

• Prime Factorization

• Decimal Conversion

Which fractions are being compared in the video?

• 1/2 and 3/4

• 2/3 and 4/5

• 3/6 and 5/7

• 2/4 and 3/5

What are the denominators of the fractions being compared?

• 5 and 6

• 4 and 5

• 3 and 4

• 2 and 3

What is the first multiple of 4?

• 8

• 4

• 2

• 12

What is the least common multiple of 4 and 5?

• 25

• 15

• 20

• 10

How do you adjust the fraction 2/4 to have a denominator of 20?

• Multiply both numerator and denominator by 3

• Multiply both numerator and denominator by 2

• Multiply both numerator and denominator by 4

• Multiply both numerator and denominator by 5

What is the equivalent fraction of 2/4 with a denominator of 20?

• 12/20

• 10/20

• 8/20

• 5/20

How do you adjust the fraction 3/5 to have a denominator of 20?

• Multiply both numerator and denominator by 2

• Multiply both numerator and denominator by 3

• Multiply both numerator and denominator by 4

• Multiply both numerator and denominator by 5

What is the equivalent fraction of 3/5 with a denominator of 20?

• 10/20

• 12/20

• 15/20

• 9/20

Which fraction is greater: 10/20 or 12/20?

• Cannot be determined

• 10/20

• 12/20

• They are equal