5/21 is in its simplest form.
Wiki User
∙ 2017-02-02 21:25:00Wiki User
∙ 2011-02-13 00:02:015/21 is already in lowest terms.
21 over 49 in lowest terms is 3/7
The lowest term of 172 over 84 is 43/21 (in fraction form) or 21/21 (as a mixed number).
10 over 42 in lowest terms = 5/21
It is: 7/1
2/3
2/7
24/7
3/4
7/10
7/9
2/3
It is: 21/162 = 7/54