Exploring Equivalent Fractions with LCM

What is the least common denominator (LCD)?

• The smallest common multiple of the denominators

• The difference between the denominators

• The largest common multiple of the denominators

• The sum of the denominators

Why is it important for fractions to have the same denominator when adding or subtracting them?

• To ensure the fractions are in simplest form

• To make the numerators equal

• To make the calculation easier

• To ensure the fractions represent the same sized pieces

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the least common multiple (LCM) of 4 and 3?

• 6

• 12

• 8

• 10

If you have the fraction 3/4, what do you multiply the numerator and denominator by to convert it to a fraction with a denominator of 12?

• 2

• 3

• 4

• 5

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the equivalent fraction of 2/3 with a denominator of 12?

• 4/12

• 6/12

• 8/12

• 10/12

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the least common multiple (LCM) of 5 and 4?

• 10

• 25

• 20

• 15

To convert 1/5 to a fraction with a denominator of 20, what do you multiply the numerator and denominator by?

• 5

• 4

• 3

• 2

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the least common multiple (LCM) of 4 and 10?

• 30

• 20

• 10

• 40

What is the equivalent fraction of 3/4 with a denominator of 20?

• 18/20

• 15/20

• 12/20

• 9/20

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the least common multiple (LCM) of 10, 7, and 11?

• 110

• 1540

• 770

• 70