65/9 -(2 5/9 + 7/9)= (2 6/7 + 3 4/7)- 2 6/7 = 7 6/13 -211/13-2/13=

6 5/9-(2 5/9+7/9)=6 5/9- 2 12/9= 5 14/9- 2 12/9= 3 2/9
(2 6/7+3 4/7)-2 6/7= 5 10/7-2 6/7=3 4/7
7 6/13-2 11/13-2/13=6 19/13-2 11/13-2/13=4 8/13-2/13=4 6/13