Add 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

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

• 5/6

• 2/5

• 1/5

• 1

What is the least common denominator you could use to subtract 1/6 and 1/4?

• 24

• 16

• 20

• 12

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators