19 7/22- (86 5/26- (19 29/39+73 10/39-4 4/13)+3/4)+69 15/22-85

19 7/22- (86 5/26- (19 29/39+73 10/39-4 4/13)+3/4)+69 15/22-85=5 3/41) 19 29/39+73 10/39=93 2) 93-4 4/13=92 13/13-4 4/13=88 9/133) 86 5/26-88 9/13=86 5/26-88 18/26=-2 13/26=-2 1/24) -2 1/2+3/4=-2 2/4+3/4=-1 6/4-3/4=-1 3/4 5) 19 7/22- (-1 3/4)=19 14/44+1 33/44=21 3/446) 21 3/44+69 15/22=21 3/44+69 30/44=90 3/4 7) 90 3/4-85=5 3/4