Adding and Subtracting Unlike Denominators

• 1
• 3/6
• 1/2
• 2

1/9 + 2/27

• 3/27

• 5/27

• 3/27

• 3/36

Aden is helping his dad paint his house. They mixed 5/9 gallons of white paint and 1/6 gallons of blue paint. How many gallons was the mixture in all?

• 6/18 gallons

• 13/18 gallons

• 4/5 gallons

• 1/6 gallons

2/6 + 1/2 =

• 5/6

• 3/6

• 4/6

• 3/8

1/4 + 5/8

• 2/8

• 6/12

• 3/4

• 7/8

8/9 - 1/3 = 

• 7/6

• 5/9

• 2/3

• 8/27

• - 3/56
• 18/56
• - 4/15
• 29/56

4/5 + 3/8 (be sure to simplify)

• 32/40

• 1 7/40

• 2 5/7

• 1 1/2

1/2 + 1/4

• 1/6

• 2/6

• 3/4

• huh?

1/3 + 1/9

• 3/9

• 4/9

• 5/9

• 2/12