7 1 3 x 9 3 6 July 8, 2019 16 32 64 128 1 3 3 6 7 9 x 12 21 1 3 7 6 x 9 14 2 3 2 7/9 / 3 1 = x / 9 3 7. 1 3 (6x 9 3/7 х 1 3/11
