Add and Subtract Unlike and Mixed Fractions Word Problems

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

• common numerator

• common denominator

• equivalent fraction

• mixed number

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

• numerators

• denominators

• mixed numbers

• equivalent fractions

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

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. 

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

Combines a whole number and a fraction.

• Improper fraction

• fraction

• Mixed Number

• Product

Tim did 1/12 of a load of laundry on Sunday and 1/4 of a load of laundry on Saturday. What fraction of laundry did Tim do in total?

• 3/16 loads done 

• 1/3 loads done 

• 2/3 loads done 

• 1/6 loads done 

Answer explanation

Example

Drew ate 1/3 of a cake for breakfast and 2/5 of the cake for lunch. How much cake did Drew eat?

• 1/15 of a cake

• 2/3 of a cake

• 3/5 of a cake

• 11/15 of a cake

Paula made some chili with 1/2 of a can of black beans and 3/8 of a can of pinto beans. How many cans of beans did Paula use in all?

• 9/16

• 13/16

• 7/8

• 1/8