X 1 5 3 21 July 8, 2019 16 32 64 128 Х 1 5 3 21 X minus 1 5 3 21 5 3 5 x 1 4 21 3 x 1 2 3x x 5 )= 21 X 1 5 7 11 x 3 21 X 1 7 x 3 3 5 21 0 3 x 1 3 x 5 216 3 5 1 x )= 21 20 3 x 1 6 2x 5 21 1 2 3 5 x 13 21 21 1 2 x 5 3 4 1 3 x 21 5 as a fraction 3 5 x 1 21 x 7 8
