Dfrac 2 3b 5 20 b July 8, 2019 16 32 64 128 Dfrac 2 3b 5 20 b answer Solve for b dfrac 2 3b 5 20 b Frac 2 5 Frac 2 3 - frac 1 2 Frac 2 3 2 frac 2 5 Frac 2