2 7 4 9 July 8, 2019 16 32 64 128 2 7 4 9 6 2 7 4 9 3 2 7 4 9 as a fraction 2 4 7 9x 2 4 7 9 10 2 4 7 9 12 2 4 7 9 14 2 7 9a )-( 4 18a 2 7 9 4 5 2 7 x 4 9 2 7 x 4 )+ 9x 7 2 * 9 4 17 7 2 9 4 1 3 7 2 9 4 5 6 7 2 9 4 1
