X 3 4 21 July 8, 2019 16 32 64 128 3 x 4 21 as a fraction X 4 3 216 X 4 3 213 Х 4 3 213 X 3 7 4 21 X 3 x 4 21 12 Х 3 4 12 21 8 3 x 21 4 21g x 3 4 1 3 x 21 4 3 4 x 16 21 Bc12 21g x 3 4 21 3 4 x 17 5 x 3 )- 4 21 3 x 4 )= 21 answer