Adding and Subtracting Fractions

Improper Fractions and Mixed Numbers

100

Add: 2 1/2+ 2 1/2

5

200

Add: 6 1/4 + 1/4

6 1/2

300

Add: 2/3+ 3/6

7/6 or 1 1/6

400

Subract 8 2/3- 1/3

8 1/3

500

Subtract 6/9- 2/3

2/3

Reduce Fractions (Simplest Form)

100

Reduce the fraction: 3/6

1/2

200

Reduce the fraction: 3/12

1/4

300

Reduce the fraction: 10/12

5/6

400

Reduce the fraction: 3/9

1/3

500

Reduce the fraction: 15/45

1/4

Estimating with Fractions

100

Estimate if the fraction is closest to 0, 1/2, or 1: 8/9

1

200

Estimate if the fraction is closest to 0, 1/2, or 1: 4/7

1/2

300

Estimate if the fractions are closest to 0, 1/2, or 1, then add or subtract: 1/4 + 5/9

1

400

Estimate if the fractions are closest to 0, 1/2, or 1, then add or subtract: 11/12 - 1/9

0

500

Estimate if the fractions are closest to 0, 1/2, or 1, then add or subtract: 2/3 + 4/5

1 1/2

Adding Fractions

100

3/8 + 3/8

6/8 = 3/4

200

2/3 + 1/6

5/6

300

2/5 + 1/2

9/10

400

5/6 + 1/4

13/12 = 1 1/12

500

3/4 + 7/8

26/16 = 1 10/16 = 1 5/8

Subtracting Fractions

100

7/8 - 5/8

2/8 = 1/4

200

7/10 - 1/2

2/10 = 1/5

300

2/3 - 1/12

7/12

400

4/6 - 1/4

5/12

500

5/6 - 3/9

9/18 = 1/2