12 = frac 1 2 x 3 July 8, 2019 16 32 64 128 12 frac 1 2 x - frac 1 2 = frac 3 4 $- frac 1 3 x 12 + frac 1 2 x 6 =$ Frac 12 Frac 2 3 - frac 1 2 12 ×1=12 Frac 1 3 +3 frac 3 4 - frac 1 12