12 7x4 5 July 8, 2019 16 32 64 128 12 7 x 4 5 7 5x 8 12 x 4 12 7 √ x 5 4 4 5 x 7 12 in fraction X chia 5 12 4 7 5x 7 4 x 12 12 x 4/7 12 x 5/7
