Fraction Operations

Select all operations with fractions that require a common denominator.

• addition

• division

• multiplication

• subtraction

• 3/11
• 21/38
• 19/24
• 3/16

• 1/3
• 3
• 1/9

• 3/18

• -4/3
• 13/18
• 4/3
• 2/9

• 1/12

• 1

• 2/35

• 23/25

• 20/50

• 10/25

• 2/5

• 9/15

• 8 / 9

• 2 / 1

• 6 / 6

• .333 / .75

Katelyn is making bead necklaces. She is using ¼ cup of large beads and ⅖ cup of small beads. How many cups of beads is Katelyn using? 

• 2/20 cup
• 3/9 cup 
• 3/20 cup 
• 13/20 cup 

Oscar began his pizza delivery route with 4/6 of a tank of gas in his car. When he made it back to the pizzeria, 2/6 of a tank of gas was left. How much gas did Oscar use making the deliveries?

• 1/6 tanks
• 1/3 tanks
• 1/4 tanks
• 2/4 tanks

Reduce the following fraction:
16/20 =

• 8/10
• 4/5
• 1/2
• 16/20