5th Ch 3 Adding & Subtracting Fractions Review

Adding with unlike Denominators

100

1/4 + 5/8

7/8

200

2/5 + 1/2

9/10

300

2/3 + 1/9

7/9

400

5/12 + 2/8 

16/24 or 2/3

500

5/9 + 7/27

22/27

Subtraction with Unlike Denominators

100

15/20 - 1/5 

11/20

200

3/4 -5/12 

4/12 or 1/3

300

7/12 - 1/2

1/12

400

5/6 - 2/12

2/3

500

3/12 - 1/8

3/24 or 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  8/30 or  13  4/15

400

8 7/9 + 2 2/3

11 12/27 or 11 4/9 

500

10 5/6 + 8 14/15

20 15/30  or 20 1/2

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  8/9-  8  2/3

9  2/9

400

7 4/5 - 2 9/10

4  9/10

500

9  3/4- 5  8/12

4   1/12

Improper Fractions and Mixed Numbers

100

What is 8/7 written as a mixed number?

1 and 1/7

200

What is 1 and 2/3 written as an improper fraction? 

5/3

300

What is 14/3 written as a mixed number?

4 and 2/3

400

What is 8 and 20/21 written as an improper fraction? 

188/21

500

what is 154/13 written as a mixed number?

11  11/13

simplifying

100

Please simplify 5/20 

1/4

200

Please simplify 12/ 24

1/2

300

Please simplify 20/30

2/3

400

Please simplify 21/28

3/4

500

18/30

3/5