It is: 9/21 = 3/7 simplified
Nine over 21 in its simplest form is 3/7
3/7
21/9 = 7/3 = 21/3
Common factor is seven. So it is 3 over nine
21/9 - 1/2 = 1.8333
6/7 ÷ 9/10 = 60/63 simplfied as 20/21.
23/9 = 21/3 = 7/3
Brooklyn Nine-Nine - 2013 Unsolvable 1-21 was released on: USA: 18 March 2014
1/4 + 3/9 = 9/36 + 12/36 = 21/36 = 7/12
21
21
9 / (3/7) = 9 * (7/3) = 21 which is an integer, not an improper fraction.