5 15 x 3 15 July 8, 2019 16 32 64 128 9 5 x 15 15 3 3 15 x 5 15 as a fraction 2 x 15 5 =( 2 x 15 3 15 x 3 x 1 5 x 1 15 5 3 x )= 15x 15 3 5 x 15 ≥ 15 15 x 2 15 x 3 15 x 5 100 15×3 5