2/21 is.
2/21
8 x 2 2/3 = 21 1/3
divide 21 by 3 which is 7, then times 7 by 2 which is 14. 2 - 0f 21 =14 3
2/3 x 4/7 is 8/21
(2/3) x (2/3) x (2/3) x (2/3) = (2/3)4 = 16/81
One third is 21/3 = 7 So two thirds of 21 = 7 x 2 = 14
2 1/3 * 9 = 7/3 * 9/1 = 63/3 = 21
negative two-thirds
105/21 = 5
51/2 times
14/21 = 2/3 or two thirds.