13 - 3/19= 10 16/21
20/21= 11 - 3/5= 2/5
16 8/33= 16 8/33
3 17/33= 3 17/33
16 8/33 - 3 17/33= 13 15/33
Final answer: 13 15/33
13 - 3/19= 10 16/21
20/21= 1
1 - 3/5= 2/5
16 8/33= 16 8/33
3 17/33= 3 17/33
16 8/33 - 3 17/33= 13 15/33
Final answer: 13 15/33