Subtract Mixed Numbers with Unlike Denominators

Solve and simplify to lowest terms.

• a

• b

• c

• d

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

I know I must __________ if the question asks for the difference.

• subtract

• add

• multiply

• divide

• 3 4/6

• 3 2/3

• 3 1/3

• 3 1/2

Solve and simplify to lowest terms.

• a

• b

• c

• d

Find the difference.

9 1/6 - 3 5/8 =

• 6 15/24

• 5 9/24

• 5 13/24

• 6 13/24