Unit 3 Review

Adding Fractions

100

Add the fractions:   2/5  +  1/15

7/15

200

Add the fractions:  1/4  +  2/8

1/2

300

Add the fractions: 

2 6/20 + 3 1/5

11/2 or 5 1/2

400

Add the fractions:  

1/8 + 2/3

19/24

500

Add the fractions: 

22/50 + 21/100

65/100 or 13/20

Subtracting Fractions

100

Subtract the fractions:   4/10  -  2/5

0

200

Subtract the fractions:  4/7  -  3/7

1/7

300

Subtract the fractions:  7/10  -  3/5

1/10

400

Subtract the fractions:

1 11/14 -  1 3/7

5/14

500

Subtract the fractions:

3 23/100 - 1 4/50

43/20 or 2 3/20

Multiplying Fractions

100

Multiply the fractions:
2/5 x 3/4

6/20 or 3/10

200

Multiply the following:

3/7 x 14/8

3/4

300

Multiply the fractions:

1 1/3 x 2 3/5

52/15 or 3 7/15

400

Multiply the fractions:

32/5 x 30/8

24

500

Multiply the fractions:

4 2/3 x 3 3/7

16

Dividing Fractions

100

Write the reciprocal of:

18/27

27/18

200

Divide the following fractions:

3/4 divided by 2

3/8

300

Divide the following fractions:

1/5 divided by 1/4

4/5

400

Divide the following fractions:

3/7 divided by 6/14

1

500

Divide the following fractions:

7 2/3 divided by 1 1/6

46/7 or 6 4/7

Powers of 10

100

0.56 x 10⁴

5600

200

85.3 / 10³

0.0853

300

.01 x 7062

70.62

400

6309 / 0.01

630,900

500

27,067,000 / ? = 27,067

10³ or 1000