Frac 12y 1 2 frac 9y 8 5 July 8, 2019 16 32 64 128 Frac 5 8 cdot frac 2 5 8 5 ⋅ 5 2 Frac 12 Fractii algebrice clasa 9 1 - frac13 + frac15 - frac17 + ldots pm frac1 2n + 1
