L7-2 Find Common Denominators

Find a common denominator for each pair of fraction 3/8 and 2/3

• 24

• 12

• 16

• 20

Find a common denominator for each pair of fraction `1/7 and 2/3

• 35

• 6

• 21

• 24

Suppose you want to cut a square cake so that one person can take 1/3 of the cake and another person can take 1/5 of the cake. Which shows a way to divide the cake?

• 15

• 17

• 25

• 35

Find a common denominator for each pair of fraction `7/15 and 3/5

• 15

• 25

• 6

• 40

Add the fraction 4/5 + 1/15

• A. 13/15

• b. 5/15

• c. 8/5

Add the fraction 1/9 + 1/18

• A. 2/18

• b. 3/18

• c.2/9

A contractor was paving a driveway. He mixed 4/7 ton of sand and 1/3 ton of concrete. How much did the mixture weigh?

• 3/11

• 11/18

• 13/18