Modeling Adding and Subtracting Fractions

What is 6/7 - 3/7?

• 3/7

• 10/67

• 20/89

• 2/4

What is 8/9 - 5/6?

• 1/18

• 3/4

• 6/7

• 10/12

2 9/10 + 6 1/3=

• 8 5/9

• 5 4/9

• 6 1/4

• 4 1/2

2  2/10 + 5  1/5 =
Reduce if needed.

• 5  3/4

• 7  2/5

• 3  3/5

• 7  4/10

5  1/2 + 6  2/3=
Reduce if needed.

• 11  7/6

• 10  1/6

• 12  1/6

• 9  3/4

6  2/4 - 2  2/5=
Reduce if needed.

• 5  2/7

• 4  2/20

• 6  1/2

• 4  1/10

8  2/4 - 3  1/3=
Reduce if needed.

• 5  2/12

• 5  1/6

• 11  1/6

• 8  2/3

9  1/2 - 2  2/4=
Reduce if needed.

• 7

• 7  1/2

• 11

• 11  1/2

9  2/3 + 2  7/9=
Reduce if needed.

• 11  13/9

• 12  4/9

• 11  7/9

• 7  7/9

2  2/3 + 9  4/5=
Reduce if needed.

• 12  7/15

• 11  22/15

• 9  1/3

• 5  1/2