Expressing
GCF & LCD
Simplify & Convert
Add it
Subtract it
100

“5 out of 20 students play soccer”

5/20

100

GCF of 24 and 36

12

100

 Simplify 12/16 

GCF =  4 , so  12/16 = 3/4 

100

 

3/8 + 5/12

19/24

100

7/15 - 2/10

8/30 = 4 /15

200

“15 correct answers out of 25 questions” 

15/20

200

GCF of 54 and 81

 27 

 27 

200

Convert  8/5 into a mixed number 

1 3/5

200

7/10 + 3/15

27/30 = 9/10

200

9/20 - 7/25

17/100

300

 9/4

9÷4

300

 

LCD of  1/2  and  1/3 

6

300

Convert  3 3/4 into an improper fraction 

15/4

300

11/18 + 7/12

43/36 = 1 7/36

300

4/9 - 1/6 

5/18

400

“60 out of 120 votes are for tacos”

 60/120 = 1/2 (simplified)

400

Rewrite  7/10  and  3/4 

LCD =  20 

 7/10 = 14/20 

 3/4 = 15/20 .

400

Simplify  275/325 

GCF =  25 , so  275/325 = 11/13 

400

5/9 + 4/15

37/45

400

3/5 - 2/7

11/35

500

 23 ÷ 7 = 3 2/7

3 2/7

500

LCD of  2/5  and  1/4 

20

500

Simplify  96/128 

GCF =  32 , so  96/128 = 3/4 

500

2/7 + 3/14

7/14 = 1/2

500

5/12 - 1/8

7/24