Show:
Addition
Subtraction
Multiplication
Division (KCF)
TEST YOUR LUCK
200

1/4 + 3/4

4/4 or 1

200

4/5 - 1/5

3/5

200

4/9 x 1/9

4/9

200

1/2 / 2/3

KEEP CHANGE FLIP:

1/2 x 3/2 = 3/4

200

2/3 - 3/6 (YOU MUST SIMPLIFY)

12/18 - 9/18 = 3/18

3/18 ---> 1/6

400

6/11 + 4/11

10/11

400

9/13- 4/13

5/13

400
3/5 x 2/7

6/35

400

4/5 / 1/3

KEEP CHANGE FLIP

4/5 x 3/1= 4/15

400

4/7 + 4/6 (YOU MUST TURN INTO PROPER FRACTION)

24/42 + 28/42 = 52/42

52 / 42 = 1 and 10/42

600

3/16 + 5/16 (YOU MUST SIMPLIFY)

8/15 ---> 1/2

600

7/12 - 3/12 (YOU MUST SIMPLIFY)

4/12 ---> 1/3

600

6/8 x 4/6 (YOU MUST SIMPLIFY)

24/48 ---> 1/2

600

6/9 x 6/7 (YOU MUST SIMPLIFY)

KEEP CHANGE FLIP:

6/9 x 7/6= 42/54 --->7/9

600

4/5 / 7/9 (YOU MUST TURN TO PROPER FRACTION)

KEEP CHANGE FLIP

4/5 x 9/7 = 36/35

36 / 35 = 1 and 1/35

800

3/10 + 1/4 (YOU MUST SIMPLIFY)

11/20

800

2/4 - 1/6 (YOU MUST SIMPLIFY)

12/24 - 4/24= 8/24

8/24 ---> 1/3

800

5/9 x 3/4 (YOU MUST SIMPLIFY) 

15/36 ---> 5/12

800

4/7 / 8/9 (YOU MUST SIMPLIFY)

KEEP CHANGE FLIP

4/7 x 9/8 = 36/56 ---> 9/14

800

2/6 x 6/7 (YOU MUST SIMPLIFY)

12/42 --->2/7

1000

2/3 + 3/5 (YOU MUST TURN INTO PROPER FRACTION)

10/15 + 9/15 = 19/15 

   15 / 19 = 1 and 4/15

1000

4/7 - 3/9 (YOU MUST SIMPLIFY)

15/63 ---> 5/21

1000

6/7 x 4/3 (YOU MUST TURN INTO PROPER FRACTION)

24/21   24/21= 1 and 3/21

1000

9/16 / 5/10 (YOU MUST TURN INTO PROPER FRACTION)

9/16 x 10/5 =90/80

90/80 ---> 1 and 10/90

1000

11/15 + 13/19

209/285 + 195/285 = 404/285


285/ 404 = 1 and 119/285