Adding Fractions with Common Denominators

What would be the common denominator for adding 1/2 + 3/4?

• 6

• 4

• 9

• 2

What would be the common denominator for adding 3/9 + 4/6?

• 9

• 12

• 18

• 27

When adding fractions with like denominators, the denominators....

• stay the same

• are added together

When adding and subtracting fractions, what needs to be the same?

• the numerator

• the denominator

• nothing

• everything

What must you have to add and subtract fractions?

• Different denominators

• Common denominators

• Common numerators

• Different numerators

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

What must you have to add and subtract fractions?

• Common numerators

• Ms. Pierce

• Different denominators

• Common denominators

2/7 + 3/7 = 

• 4/7

• 5/7

• 5/14

To add or subtract, two fractions must have...

• a monkey.

• unlike terms.

• common denominators.

• the same numerators.

What is ⁵/₆ + ⁴/₆?

• ⁴/₆ or ²/₃

• ⁹/₁₂ or ³/₄

• ³/₄

• ⁹/₆ or ³/₂ or 1¹/₂