GCF, LCM and Fractions

Which picture shows 1/2?

• green

• blue

• purple

• pink

What is the difference between GCF and LCM?

• one is for the multiples and the other is for factors

• they are spelled differently

Find the greatest common factor of 20 and 30

• 2

• 5

• 10

• 15

What is the LCM of 3 and 8?

• 16

• 24

• 32

• 48

GCF of 24 and 48

• 3

• 6

• 12

• 24

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

What is the Least Common Multiple of 4 and 14

• 28

• 42

• 56

• 24

Find the Greatest Common Factor (GCF) of 14 & 22.

• 1

• 2

• 7

• 14

What is the least common multiple (LCM) of 2 and 3?

• 6

• 8

• 20

• 10

What is the least common multiple (LCM) of 12 and 2?

• 24

• 2

• 12

• 36