GCF and LCD

What is the LCD of these fractions?

• 45

• 50

• 60

• 72

What is the greatest common factor of 16 and 36?

• 2

• 9

• 4

• 6

The LCD of 3/4 and 2/5 =

• 16

• 20

• 25

• 12

Which is the greatest common factor of 24, 48, and 54?

• 2

• 6

• 3

• 432

The number one rule for adding and subtracting fractions is to...

• find the GCF.

• find a least common denominator.

• line up the fractions.

• add the numerators.

GCF stands for...

• Greatest Common Fraction

• Greatest Caramel Frappuccino

• Greatest Core Factor

• Greatest Common Factor

Find the GCF of 6 and 24.

• 3

• 4

• 6

• 2

LCD is...

• Littlest Common Denominator

• Least Confusing Demonstration

• Least Common Dollar

• Least Common Denominator

When adding or subtracting fractions, I have to use or find ________ before I can solve.

• Factoring

• LCD

• GCF

• Division