3 6 x 1 7 8 6 5 July 8, 2019 16 32 64 128 3 6 x 1 2 7 8 6 5 3 6/7 8=x-1/6 5 6 1 3 - 8 3 6-8 7= (7 6 - 3 1) * 6 8 6 3×1 8
