Adding and Subtracting Fractions with Common Denominator Word Problems

What is the least common denominator of the fractions 1/4 and 2/3 ?

• 2

• 4

• 8

• 12

Devon combines 1/3 cup of raisins and 1/2 cup of granola to make a snack. How many cups of raisins and granola does Devon use?

• 2/5 cup

• 3/6 cup

• 2/6 cup

• 5/6 cup

Ann spent 1/8 of her allowance to buy paper and 3/4 of her allowance to buy paint. How much of her allowance did Ann spend?

• 1/2

• 7/8

• 1/3

• 1/12

Harry filled a watering can with 3/4 gallon of water. After watering a plant, he sees that 1/8 gallon is left. How much water did Harry use to water the plant?

• 1/8 gallon

• 3/8 gallon

• 5/8 gallon

• 1/2 gallon

Which fractions are equivalent to 5/6 and 2/9 and show the least common denominator?

• 10/12, 4/12

• 10/18, 4/18

• 15/18, 4/18

• 10/12, 6/12

Which is the best estimate of the sum of 5/6 and 3/8?

• 3

• 1 1/2

• 2

• 1/2

Pia has 9/10 meter of ribbon. She cuts off 3/5 meter of the ribbon to use as a bow on a box. How much ribbon does Pia have left?

• 1/2

• 3/10

• 5/6

• 6/15

Ken uses 3/4 yard of blue yarn and 1/8 yard of red yarn for an art project. What is the total length of yarn Ken uses?

• 7/8 yard

• 1 1/4 yards

• 1 yard

• 1 1/8 yards

Jose ran 3/10 miles and Syd ran 1/2 miles. How many more miles did Syd run than Jose?

• 1/5

• 1/2

• 1/4

• 1/3

Gail made 7/8 quart of lemonade. Her sister drank 1/4 quart of the lemonade. How much lemonade is left?

• 1/2 quart

• 2/3 quart

• 1 quart

• 5/8 quart