( 1 frac 1 4 c 2 frac 3 4 ) July 8, 2019 16 32 64 128 ( 1 frac 1 4 + c 2 frac 3 4 ) Frac 1 4 4 1/2 + 1 1/3 Frac 1 3 +3 frac 3 4 - frac 1 12 Frac 2 3 - frac 1 2 Frac - frac 1 2 - frac 4 3 − 3 4 − 2 1