Add/Subtract
Add/Subtract
Multiply/Divide
Multiply/Divide
Reduce
100

2/7 +3/7

5/7

100

4/7 -3/8 

11/56

100

1/2 X 4/5 

8/10

100

2 ÷ 3/8

16/3

100

8/80

1/10

200

3/5 + 1/4

17/20

200

3/5 -1/3 

4/15

200

5/9 x 9

45/9 or 5

200

6 x 1/3

18/1

200

16/88

2/11

300

4/5 + 1/2 

13/10

300

5/6 + 3/8

29/24

300

5/16 x 20/30 

100/480 or 5/24

300

3/5 x 10/11

30/55

300

22/24

11/12

400

9/10 - 1/3

17/30

400

3/5 + 1/4

17/20

400

7/8 x 12/13

84/104

400

7/10 x 2/21

14 x 210

400

14/56

1/4

500

2/13 + 2/3

32/39

500

9/11-1/2

7/22

500

5/8 ÷ 15/16

80/120

500

7/12 ÷ 3/4

7/9

500

14/42

1/3

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