+/- with Like Denominators

+/- with Unlike Denominators

Adding Mixed Numbers with Unlike Denominators

Subtracting Mixed Numbers with Unlike Denominators

Vocabulary for Working with Fractions

etc.

100

1/6 + 4/6

5/6

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

100

Fill in the missing blank:

2 3/8 + __ = 3

5/8

200

3/4 - 1/4

1/2

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

200

DOUBLE JEOPARDY

Ryan is 5 1/4 feet tall. John is 5 1/3 tall.

Who is taller? How much taller?

John is 1/12 of a foot taller.

300

9/10 - 7/10

1/5

300

7/12 - 1/2

1/12

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

300

Tonya ran 2/3 of a mile down at the high school track and then walked 2/6 of a mile. How war did Tonya go in all? Choose the best *estimate.*

a. more than a mile

b. between half a mile and a whole mile

c. less than half a mile

b. between half a mile and a whole mile

400

2 + 4/12

2 1/3

400

5/6 - 2/12

3/4

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. (Hint: This is the 2nd step when adding or subtracting fractions)

equivalent

400

1/3 0f 24

8

500

1 - 1/8

7/8

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

This is the fraction of 5th grade to the total number of upper grades (3-5) at Washington Elementary.

1/3

500

Which is a better buy? Twelve cans for $7 or 6 cans for $4.

12 cans for $7

Explanation:

12 cans for $7 = $0.58 per can

6 cans for $4 = $0.66 per can

Click to zoom