Adding and Subtracting Fractions

What is equivalent to ¾?

• 7/12
• 15/20
• 12/20
• 1  1/4

1/2 + 1/3

• 1/6
• 1/5
• 2/5
• 5/6

1/3 + 2/5

• 4/15
• 4/8
• 11/15
• 2/8

What is the first step in solving this problem? 
⅘ + ½ =

• Add the top parts of the fraction
• Rewrite the fractions in the simplest form. 
• Find a common denominator. 
• Make each fraction into an improper faction. 

What must you have to add and subtract fractions?

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

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3
• 4
• 24
• 12

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

What is the difference of 7/8 - 1/3?

• 6/5
• 8/11
• 6/8
• 13/24

3/5 + 3/10

• 9/12

• 9/10

• 3/5

• 6/10

2/3 +2/9

• 4/9

• 8/9

• 4/12

• 4/18