Add Subtract Mixed Numbers with Common Denominator

The ____________________ is a common multiple of two or more denominators.

• equivalent

• simplest fraction

• common denominator

• mixed number

A _________ is written as a whole number and a fraction.

• unlike denominators

• mixed number

• proper fraction

• common multiple

I know I must _________ if the question asks for the sum.

• add

• subtract

• divide

• multiply

• 1    5/12
• 3     11/24
• 3    11/12
• 3    1/2

Solve.

• 3 ³/₄

• 3 ³/₈

• 2 ³/₄

• 2 ²/₄

1 11/12 + 2 5/12

• 4 1/3

• 3 4/12

• 4 16/12

What is the sum?

• 
• 
• 
• 

Solve

• 11 3/4

• 11 3/8

• 11

• 3/4