Unit 9 Review

Adding Fractions w/ Like Denominators

100

What is the sum of: 

3/8 + 2/8

5/8

200

4/6 + 1/6 + 1/6

6/6 or 1 whole

300

What is the sum of:

8/6 + 7/6

15/6 = 2 3/6 (6/6 + 6/6 + 3/6)

400

Decompose 11/15 (more than 1 answer)

Anything fractions that add up to 11/15 works

500

Decompose 8/15 using three fractions. 

Any 3 fractions that add up to 8/15 work

Subtracting Fractions w/ Like Denominators

100

Find the difference:

6/9 - 2/9

4/9

200

Solve:

16/25 - 7/25 =

9/25

300

When subtracting fractions, do you subtract the numerators or the denominators?

numerators

400

Find the difference:

18/19 - 16/19

2/19

500

Find the difference and then write as a mixed number. 

12/6 - 3/6

9/6 = 1 3/6 (6/6 + 3/6)

Modeling Addition and Subtraction of Fractions

100

Draw a Model and Solve:

3/10 + 5/10 =

8/10

200

Draw a Model and Solve:

12/8 - 7/8 =

5/8

300

Draw a Model and Solve:

6/9 + 7/9 =

Turn into a mixed number

13/9 = 1 4/9 (9/9 + 4/9)

400

Draw a Model and Solve:

7/17 + 10/17 =

17/17 = 1

500

Draw a Model and Solve:

21/7 - 6/7 =

Turn into a mixed number. 

15/7 = 2 1/7 (7/7 + 7/7 + 1/7)

Mixed Number Addition and Subtraction

100

Solve:

3 2/7 + 1 3/7 =

4 5/7

200

Find the difference of 4 2/4 - 2 3/4.

1 3/4

300

Solve:

1 3/6 + 2 4/6

Reduce

4 1/6

400

Solve:

7 1/5 - 3 4/5 =

3 2/5

500

Find the sum of 2 7/8 + 3 3/8.

6 2/8