Common Denominator Compare Fractions

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

¹/₄ + ¹/₆ = 

• ³/₄

• ²/₁₀

• ⁵/₁₂

• ¹/₂₄

Which of these numbers could NOT be a common denominator for these three fractions?
1/3   and 2/5   and   3/10

• 15

• 30

• 60

• 90

3/6 __ 5/10

• <

• >

• =

Use your common denominator strategy to proof your work for this question.

• F

• G

• H

• J

Tomas is comparing the fractions 1/3 and 3/4. He rewrites the fractions using a common denominator. His work was all correct. Which shows Tomas's comparison?

• 4/12 < 9/12

• 4/12 > 9/12

• 4/12 = 9/12

• 4/12 < 6/12

5/8 __ 5/6

• <

• >

• =

1/4 ___ 2/3

• >

• <

• =

Compare the fractions by writing <, > or =

Fred wrote a number sentence that compares two fractions. He has a missing number in one of the fractions.

• 7

• 8

• 3

• 2