Show:
Adding
Subtracting
Equivalent Fractions
Mixed Numbers
Smallest Common Denominators
100

1/4 + 2/4

3/4


100

3/4 - 1/4

2/4 or 1/2

100

1/3 = ?/6

2/6

100

1 1/3 + 1 1/3

2 2/3


100

2 and 5

10

200

3/9 + 3/9

6/9 or 2/3

200

16/23 - 7/23

9/23

200

4/12 = 1/?

1/3

200

3 2/3 + 4 1/3

7 3/3 or 8

200

2 and 9

18

300

11/88 + 22/88

33/88 or 3/8

300

343/227 - 211/227

132/227

300

20/25 = 4/?

4/5

300

6 3/4 - 2 1/4

4 2/4 or 4 1/2

300

10 and 6

30

400

1/4 + 1/5

9/20

400

2/3 - 1/2

1/6

400

110/140 = ?/14

11/14

400

5 1/3 - 2 1/6

3 1/6

400

8 and 10

40

500

3/8 + 1/3

20/24 or 10/12 or 5/6

500

7/8 - 1/3

13/24

500

?/100 = 1/5

20/100

500

2 3/4 + 1 2/3

3 17/12 or 4 5/12

500

16 and 6

48