7 1 5 6 11 x 28 x = July 8, 2019 16 32 64 128 7 1 5 6 11 x 28 x คือ 5 x 7 = 35 7 1/2 x 1 5/6 5 1/7 х 1 8/27 7 1/2 - 6 5/7
