Adding and Subtracting Fractions

Least Common Multiple

100

Find the least common multiple

6 and 8

24

200

Find the least common multiple.

3 and 12

12

300

Find the lowest common denominator.

1/3    and     1/7

21

400

Find the lowest common denominator.

1/5   and      1/14

70

500

Find the lowest common denominator.

1/15    and    1/25   

75

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

Equivalent Fractions

100

Find an equivalent fraction.

1/2

Answers will vary.

200

Find an equivalent fraction.

3/14

Answers will vary.

300

Find an equivalent fraction.

2/17

Answers will vary.

400

Find an equivalent fraction.

6/19

Answers will vary.

500

Which is not an equivalent fraction to 5/15?

A.  10/30

B.  30/90

C.  15/40

D. 25/75

C.  15/40

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