5 5 x 7 9 July 8, 2019 16 32 64 128 5 2 5 x 7 9 5 3 ( 1 5 x )= 7 9 5 7 4 5 x 9 7 5 x 7 )= 90 (- 5 7 8 x (- 5 7 9 5 х 7 9 2 x 5 5 x 7 9 x 3 Y 5 =- 5 7 x 9 X 5 5 x 9 7 15 5 x 7 9 as a fraction