7 11 18 x 1 July 8, 2019 16 32 64 128 4 11 18 x 6 7 1 4 9 7 18 x 11 18 Frac 7 11 = frac 18 x 1 11 18 x 7 12 10 7 x 11 18 15 18 x 7 11 7 × 18
