(7 5\14 + 2 9\14) - 3 5\14
(7 5/14 + 2 9/14) - 3 5/14 = 6 9/14
(7 5/14 + 2 9/14) - 3 5/14 = 6 9/14 1) 7 5/14 -+ 2 9/14 = 9 14/14 = 10 2) 10- 3 5/14 = 6 9/14