F

Suma

100

1/4 + 2/4 =

3/4

200

2/3 + 1/6

5/6

300

1/2+3/4

5/4

10/8

400

5/8+2/8

7/8

500

2/7+3/14

10/14

5/7

Suma

100

3/5 + 1/5 

4/5

200

4/9 + 1/6

11/18

300

5/12 + 1/4

8/12 

2/3

400

3/10 + 4/10

7/10

500

1/3 + 2/5

11/15

Suma

100

1/3 + 2/5

11/15

200

2/7 + 3/10

41/70

300

3/8 + 5/12

19/24

400

4/9 + 2/7

46/63

500

5/6 + 1/8

23/24

Resta

100

3/4 - 1/4

2/4

1/2

200

5/6 - 2/6

3/6

1/2

300

7/8 - 3/8

4/8

1/2

400

5/9 - 2/9

3/9

1/3

500

2/3 - 1/6

3/6 

1/2

Resta

100

7/8 − 2/5

19/40

200

4/7 − 1/6

17/42

300

5/9 − 2/7

17/63

400

5/6 − 1/4

7/12

500

3/5 − 1/3

4/15