Adding and Subtracting Fractions

Numerator and Denominator

100

What is the numerator in the answer for 1/4+2/5

13

200

What is the denominator in the answer of 3/6+2/3?

6

300

What is the common denominator for 2/3 and 3/27?

27

400

What is the common denominator in 3/15 and 2/10?

30

500

What is the common denominator in 6/20 and 17/25?

100

Reduce Fractions (Simplest Form)

100

Reduce the fraction: 8/28

2/7

200

Reduce the fraction: 9/36

1/4

300

Write the fraction in its simplest form: 72/144

1/2

400

Write the fraction in simplest form: 5 12/8

6 1/2

500

Write the fraction in simplest form: 7 9/4

9 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