Adding and Subtracting Unlike Fractions and Mixed Numbers Using Models

4   1/3   + 2  1/3

• 6  1/3
• 6  2/3
• 6  2/6
• 7  2/3

12  8/9  + 3  4/9=
(SIMPLEST FORM)

• 15 3/9
• 16 1/3
• 17 3/9
• 16  3/7

9  2/3 + 2  7/9=
Reduce if needed.

• 11  13/9
• 12  4/9
• 11  7/9
• 7  7/9

5  1/2 + 6  2/3=
Simplify/Reduce if needed.

• 11  7/6
• 10  1/6
• 12  1/6
• 9  3/4

7  4/7 - 5  2/7 =

• 2  2/7
• 2  6/7
• 12  6/7
• 2  1/7

3  7/9 - 1  8/9 =

• 4  16/9
• 2  8/9
• 1  8/9
• 1  1/9

7 4/5 - 3 1/5

• 4 3/5

• 3 4/5

• 11

• 4 2/5

1  2/5 -  4/5

• 5/5
• 4/5
• 3/5
• 1 2/5

 4  2/6  -  1  2/3

• 1  2/3
• 2  2/3
• 3  2/3
• 4  2/3

Tim has a board that is 5/6 feet long. He painted 2/18 feet of his board last night. How much more does Tim have left to paint?

• 13/18
• 7/24
• 7/18
• 3/7