Adding Fractions Unlike Denominators Word Problems

Raleigh has 1/3 of the cake, Edna has 1/12 of the cake, Gertie has 1/2 of the cake. How much cake do they have altogether?

• 6/12

• 9/12

• 11/12

• 1

Lacey is making a fruit salad. She mixes in 2/5 cup of grapes, 3/10 cup of watermelon, and 1/2 cup of cantaloupe. How much fruit did she mix together in all?

• 2/5 cup

• 4/5 cup

• 1 1/5 cups

• 1 1/2 cups

Jade collects stones. One stone weighs 1/12 pound and the other weighs 5/6 pound. How much do her stones weigh together?

• 2/12 pound

• 5/12 pound

• 9/12 pound

• 11/12 pound

Katie ate 1/4 of a pound cake. Brinley ate 3/8 of the same pound cake. How much pound cake did the girls eat in all?

• 1/8

• 3/8

• 5/8

• 7/8

Simon has 1/5 of a gallon of cranberry juice, 1/3 of a gallon of apple juice, and 7/10 of a gallon of grape juice. How much juice does Simon have?

• 9/30

• 1/2

• 1  7/30

• 1  13/30

April has 2/3 cup sugar and Marvin has 11/12 cups of sugar. How much sugar do they have together?

• 5/12 cup

• 1 cup

• 1 4/12 cups

• 1 7/12 cups

When adding or subtracting fractions, I NEVER add or subtract the...

• numerators

• denominators

• mixed numbers

• equivalent fractions

What is the first step in solving this problem? 
⅘ + ½ =

• Add the top parts of the fraction

• Rewrite the fractions in the simplest form. 

• Find a common denominator. 

• Make each fraction into an improper faction. 

When the denominators are not the same, I must find a...

• common numerator

• common denominator

• equivalent fraction

• mixed number

Is this a correct answer?

• Yes, the student correctly added.

• No, you cannot add unlike denominators

• No, 5 + 7 is not 12

• No, 2 + 3 is not 5