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100

5/5 + 2/5

7/5 or 1 2/5

100

2/3 - 1/2 =

1/6

100

12/4

3

100

7x9 =

63

100

2/3 + 1/4 + 1/4 =

1  1/6   or   7/6

200

6/3 + 2/3 =

8/3 or 2 2/3

200

5/6 - 1/4 =

7/12

200

24/6

4

200

81/9=

9

200

7/6 - 3/4 =

5/12

300

3/4 + 1/5 =

19/20

300

2/3 - 1/7 =

11/21

300

27/5

5  2/5

300

72/8=

9

300

3/4 - 1/6 + 1/4 =

8/24   or   1/3

400

2/3 + 2/7 =

20/21

400

3/4 - 3/8 =

12/32 or 3/8

400

15/7

2  1/7

400

120/10=

12

400

1/2 - 1/8 = 

3/8

500

2/3 + 3/7 =

1 2/21

500

3/4 - 2/7 =

13/28

500

28/13

2  2/13

500

7x7=

49

500

1 2/3 - 3/5 =

1  1/15