4 9x 2 5 6 July 8, 2019 16 32 64 128 4 9x 2 5 6 without fractions 2 5 9x 6 3x 4 32 9x 4 =( 2 5 6 7x 1 2 4 9x 5 6 9x 4 15x 3 6x 2 5 6x 4 4x 2 9x 5 2x 3 9x 2 6x 4 =- 5 5 6x 7 )+ 4 2 9x 9x 4 6x 2 x 1 5 4 2/9 x 6 9 x 4/6
