4 7 9 x 2 2 5 July 8, 2019 16 32 64 128 1 2 7 9 x 4 2 5x 9 2 5 4 x 7 2 x 5 8 4 9 3 7 x 2 5 2 1 divided by 2 7 9 x 4 2 5x 6 − 4 3 7 9 2 x 7 − 5 2 4 7/9 х/9 5 2/9 4 7/9 x/9 5 6/9
