17 frac 4 9 12 frac 2 3 July 8, 2019 16 32 64 128 Frac 4 9 + frac 3 4 94+43 1 - frac13 + frac15 - frac17 + ldots pm frac1 2n + 1 Frac 3 4 = 4 3 = frac 1 2 - frac 7 9 x 2 1 − 9 7 x $- frac 9 14 + frac 2 7 =$