4 9 х 15 16 July 8, 2019 16 32 64 128 4 9 x 15 16 4 9 15 16 4 9 x 15 16 as a fraction 4 9 16 x 1 15 16 deep cast box 4/9 x 16 1 4 9 16 and 25 sequence 15-х 4 9