(4,8-5 3/14)-(-4 3/35+4 8/35
4,8-5 3/14)-(-4 3/35+4 8/35)= -39/70 1)4 8/10-5 3/14= -29/70 2)-4 3/35+4 8/34=1/7 3)-29/70-1/7= -39/70