Show:
adding mixed numbers
subtraction mix numbers
100

1 1/2 + 2 1/2=

3 2/2=4

100

23 2/3 + 23 2/3

47 1/3

200

3 3/4 + 4 4/6 =

8 5/12

.

300

7 7/10 + 8 5/ 8=

16 13/40

400

26 6/12+30 7/26=

57 17/78

500

999 23/100+ 999 23/99=

1998 4577/9900