GCF/LCM More Practice

The store sells pencils in packs of 3 and erasers in packs of 12. If Mya wants the same number of each, what is the minimum number of each that she will have to buy?

• 3

• 4

• 12

• 6

Find the GCF of 12 and 28.

• 2

• 4

• 6

• 12

Find the LCM of 10 and 12.

• 2

• 30

• 5

• 60

A manager at a restaurant can buy hamburger buns in packages of 8 and hamburger patties in packages of 6.

What is the least number of packages of each product he can buy to have an equal number of hamburger patties and buns?

• 2

• 6

• 24

• 8

Sam and Ben are shelving books a the public library. Sam shelves 5 books at a time, whereas Ben shelves 6 at a time. If they end up shelving the same number of books, what is the minimum number of books each could have shelved?

• 30

• 5

• 11

• 15

Find the LCM of 9 and 12.

• 12

• 3

• 9

• 36

Find the GCF of 32 and 48.

• 32

• 16

• 48

• 2

Find the LCM of 10 and 4.

• 4

• 10

• 20

• 2

Find the LCM of 3 and 8.

• 24

• 3

• 8

• 21

Find the GCF of 8 and 36.

• 2

• 36

• 8

• 4