de Boer's fraction jeopardy

add fractions like denominators

100

1/2+1/2

1

200

4/8+3/8

7/8

300

6/11+7/11

1 2/11

*Must be in mixed

400

1/10+3/10+5/10

9/10

500

15/20+7/20+2/20

1 1/5

*Must be in mixed

subtract fractions like denominators

100

2/4-1/4

1/4

200

5/8-2/8

3/8

300

16/20-8/20

1/5

400

5/10-3/10-1/10

1/10

500

15/20-7/20-2/20

3/10

add fractions unlike denominators * May use Polypad for this one&*

100

1/2+1/3

5/6

200

3/7+2/4

13/14

300

8/16+2/4

1

400

4/8+7/12

1 1/12

500

3/4+7/13

1 15/52

Change mixed to improper and improper to mixed

100

1 1/4

5/4

200

9/4

2 1/4

300

19/3

6 1/3

400

11 3/7

80/3

500

102/5

20 2/5

add mixed# like denominators

100

1 1/2+1 1/2

3

200

2 2/4+3 1/4

5 3/4

300

5 2/3+9 1/3

15

400

5 4/6+12 3/6

18 1/6

500

11 3/7+16 2/7

27 5/7