Adding and Subtracting Mixed Numbers with Common 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

Once I have completed adding or subtracting fractions, I should always ____________ if possible.

• make equivalent fractions

• add again

• simplify

• multiply

When adding and subtracting fractions, which value needs to be the same in all values being added/subtracted?

• Numerator

• Denominator

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

Solve

• 11 3/4

• 11 3/8

• 11

• 3/4

1 11/12 + 2 5/12

• 4 1/3

• 3 4/12

• 4 16/12

What is the sum?

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