5.NF.2 Adding and Subtracting Fractions and Mixed Numbers

Add/Subtract with Like Denominators

100

9/12 + 3/12

1

200

6/7 + 3/7

10/7 OR 1 3/7

300

14/8 - 9/8

5/8

400

11/15 + 9/15

20/15 or 1 5/15

500

38/40 - 19/40

19/40

Add with Unlike Denominators

100

1/3 + 1/9

12/27 or 4/9

200

2/5 + 1/10

5/10 or 1/2 or 25/50

300

4/7 + 1/2

15/14 or 1 1/14

400

3/4 + 5/8

11/8 or 1 3/8 or 44/32 or 1 12/32

500

5/8 + 3/5

49/40 or 1 9/40

Subtract with Unlike Denominators

100

3/4 - 1/2

2/8 or 1/4

200

5/6 - 2/3

1/6 or 3/18

300

11/12 - 1/4

8/12 or 32/48 or 2/3

400

5/6 - 7/12

3/12 or 18/72

500

8/9 - 2/3

6/27 or 2/9 

Adding/Subtract Mixed Numbers

100

5 3/7 - 4 2/7

1 1/7

200

2 3/8 + 5 7/8

8 2/8 or 7 10/8

300

2 5/6 + 1 1/2

3 8/6 or 4 2/6 or 3 16/12 or 4 4/12

400

11 - 6 3/8

4 5/8

500

12 1/2 - 6 5/8

5 14/16 or 5 7/8

What is it close to?

100

Is 1/4 closer to 0, closer to ½, or closer to 1?

Closer to 1/2

200

Is 2/5 closer to 0, closer to ½, or closer to 1?

Closer to 1/2

300

Is 16/20 closer to 0, closer to ½, or closer to 1?

Closer to 1

400

Is 1 5/6 closer to 1, closer to 1 ½, or closer to 2 wholes?

Closer to 2 wholes

500

Is 7/4 closer to 1, closer to 1 ½, or closer to 2 wholes?

Closer to 2