Add Subtract Fractions

3/9 + 4/9

• 7/18
• 7/9
• 12/9
• 12/81

3/5 + 1/4 = 

• 5/20
• 12/20
• 7/20
• 17/20

What is the least common denominator for 1/3 and 3/4?

• 6
• 4
• 3
• 12

Add these fractions.
1/2 + 1/3 =

• 5/6
• 2/5
• 1/5
• 1

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

• 5/14
• 3/7
• 5/7
• 5/14

3/6 + 2/6 =

• 1/6

• 6/6

• 5/6

• 5/12

6/12 + 5/12 =

• 11/12

• 1/12

• 6/12

• 11/24

3/8 + 1/8 =

• 2/8

• 4/8

• 1/4

• 3/8

2/5 + 3/10

• 7/10
• 5/10
• 1/2
• 5/15