Exploring Rational Expressions: Addition and Subtraction

What does GCF stand for?

• Greatest Common Formula

• Greatest Common Function

• Greatest Common Fraction

• Greatest Common Factor

What is the GCF of 38 and 30?

• 2

• 19

• 15

• 30

What is the LCM of 6 and 18?

• 24

• 18

• 12

• 6

Which number is a prime factor of both 40 and 36?

• 5

• 4

• 3

• 2

What is the GCF of 24 and 36?

• 4

• 12

• 8

• 6

What is the LCM of 8 and 32?

• 32

• 24

• 16

• 8

What is the GCF of 24 and 32?

• 4

• 8

• 2

• 6

What is the LCM of 12 and 10?

• 50

• 40

• 30

• 20

What is the GCF of 32 and 48?

• 12

• 24

• 8

• 16

What is the LCM of 32 and 48?

• 192

• 128

• 96

• 64