5th Adding & Subtracting Fractions Review

+/- with Like Denominators

100

1/6 + 4/6

5/6

200

3/4 - 1/4

1/2 or 2/4

300

9/10 - 7/10

1/5

400

2 + 4/12

2 4/12

500

1 - 1/8

7/8

+/- 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

2/3 or 8/12

500

Sam had a candy bar. She ate 3/12 and gave away 1/8. How much does she have left? 

She has 14/24 or 7/8 of her candy bar left. 

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 or 13 8/30

400

Mikayla has 8 7/9 feet of fabric to make a pants. She needs 2 2/3 feet of fabric to make a shirt. How much total fabric will she use for the pants and shirt? 

Mikayla will need 11 12/27 feet of fabric for the pants and shirt. 

500

Lawrence planted tomato seeds on 10 5/6 of the garden. Kiesha planted lettuce seeds on 8 14/15 of the garden. How much of the garden did both of them use? 

They both used 19 23/30 of the garden to plant their seeds. 

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

Simplifying Fractions

100

Simplify 8/7 

1 and 1/7

200

Simplify 5/3

1 and 5/3

300

Simplify 14/3 

4 and 2/3

400

Can you simplify 10/14?

Yes

500

Can you simplify 11/13?

No

Vocabulary for Working with Fractions

100

3 and 4/6 is an example of a ____________

Mixed Number

200

12/7 is an example of an _______________.

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

equivalent

500

The 5th grade makes up _____ of all of the grade levels at Tacony. (as a fraction)

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