12 1 2 x 2 3 4 July 8, 2019 16 32 64 128 12 1 2 x 2 3 4 tire 12 1 2 x 5 3 4 12 1 2 x 7 3 4 2x 1 3 4x x 2 12 x 2 4 9 12 2 x 1 2 4 x 2 )-( x 3 )( 2x 5 12 1 2 x 3 4 as a fraction 12 1 2 x 15 3 4 12 1 2 x 8 3 4 12 frac 1 2 x - frac 1 2 = frac 3 4 12 1 2 48 x 1 1 2 3 1 2 2 x 3 )= 1 2 4x 12