4 1 10 x 7 3 4 July 8, 2019 16 32 64 128 4 1 2 x )- 5 x 3 10 )= 7 4 9 4 1 x 10 3 x 7 4 x 9 4x 1 2 x )- 5x x 3 10 )= 7 4 4/7 x 10 4 1/2 + 1 1/3 4 x = 10 / 1 7/8