Show:
+/- with Like Denominators
+/- with Unlike Denominators
Adding Mixed Numbers with Unlike Denominators
Subtracting Mixed Numbers with Unlike Denominators
Vocabulary for Working with Fractions
100

3 + 5/8

3  5/8

100
1/4 + 5/8
7/8
100
4 1/6 + 9 2/3
13 5/6
100
7 3/4 - 1 1/12
6 2/3
100

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

Simplified

200

3/8 - 1/8

1/4

200
2/5 + 1/2
9/10
200

8 1/4 + 8 5/6

17 1/12

200

11 1/2 - 7 3/8

4 1/8

200
12/7 is an example of an _______________. This is not in the simplest form!
improper fraction
300

9/10 -  7/10

2/10

300

7/9 - 1/2

5/18

300

8 4/6 + 4 3/5

13 4/15

300

17  -  8 2/3

8 1/3

300

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

denominator

400

2 + 4/12

2 1/3

400

5/10 - 2/12

20/60

400

8 7/9 + 2 2/3

11 12/27

400
7 4/5 - 2 9/10
4 9/10
400

Use __________ fractions after finding the LCM or common denominator before adding or subtracting. These are fractions that have the same value as the original fraction.

equivalent

500

11/12  - 8/12

3/12

500
3/12 - 1/8
1/8
500

10 5/6 + 8 14/15

19 23/30

500
9 1/2 - 5 8/12
3 5/6
500

A _________________ is a whole number and a fraction.

Mixed number