Add and Subtract Mixed Fractions with Unlike Denominators

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

• common numerator

• common denominator

• equivalent fraction

• mixed number

What must you do first in order to add or subtract fractions with unlike denominators?

• add the numerators

• add the denominators

• find a common denominator

• find a common numerator

Add the mixed fractions with unlike denominators: \(3\frac{1}{2} + 2\frac{3}{8}\)

Jason is making a fruit salad. He mixes in 3 1/4 cups of orange melon and 2 2/3 cups of green melon. How many cups of melon does Jason put in the fruit salad?

• 1 1/4

• 5 3/4

• 5 11/12

• 9/12

What is the sum?