Adding and Subtracting Fractions

Before you add or subtract fractions what must be the same?

• Numerator

• Denominator

• Just add

• Just subtract

What is a  numerator?

• a whole number
• top number in a fraction
• bottom number in the fraction
• the term for a larger top number than bottom number

3 8/12 + 2 7/12

• 6 3/12

• 5 3/12

• 6 2/12

• 5 15/12

4 2/6 - 2/6

• 0

• 3

• 4 1/6

• 4

4 1/5 - 2 4/5

• 3 2/5

• 1 2/5

• 2 2/5

2 2/6 + 6 4/6

• 8 6/6

• 8 5/6

• 9

3/9 + 1/3 =

• 7/9

• 4/12

• 2/3

Solve this equation using the least common denominator.
¼ + ½

• 3/4
• 2/8
• 6/4
• 6/8

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

Pam walks 7/8 of a mile to school.  Paul walks 1/2 of a mile to school.  How much farther does Pam walk than Paul? 

• 3/8
• 4/5
• 1 3/8
• 3/4