Adding & Subtracting Fractions Review

Decimals

100

1.46 + 1.21

2.67

200

9 divided by 0.6

15

300

1.5 + 2.03 + 0.6

4.13

400

21.2 x 2.3

48.76

500

0.7 divided by 2.8

0.25

+/- with Unlike Denominators

100

1/4 + 5/8

7/8

200

2/5 + 1/2

9/10

300

7/12 - 1/2

1/12

400

5/6 - 2/12

3/4

500

3/12 - 1/8

1/8

Adding Mixed Numbers with Unlike Denominators

100

4 1/6 + 9 2/3

13 5/6

200

8 1/4 + 8 5/6

17 1/12

300

8 4/6 + 4 3/5

13 4/15

400

8 7/9 + 2 2/3

11 12/27

500

10 5/6 + 8 14/15

19 23/30

Subtracting Mixed Numbers with Unlike Denominators

100

7 3/4 - 1 1/12

6 2/3

200

11 1/2- 7 3/8

4 1/8

300

17  -  8 2/3

8 1/3

400

7 4/5 - 2 9/10

4 9/10

500

9 1/2 - 5 8/12

3 5/6

Vocabulary for Working with Fractions

100

Answers must be ___________. (Hint: This is the last step you should always complete when working with fractions.)

Simplified

200

12/7 is an example of an _______________. This is not in the simplest form!

improper fraction

300

Fractions must have the same _________ before adding or subtracting. (Hint: This is the 1st step when adding or subtracting fractions)

denominator

400

Use __________ fractions after finding the LCM or common denominator before adding or subtracting. (Hint: This is the 2nd step when adding or subtracting fractions)

equivalent

500

This is the fraction of 7th grade to the total number of students at Castillero 

1/3