already in simplest form in other words it can not be reduced
1/18 is in its simplest form.
1
It is 1/3 in its simplest form
3/18 in simplest form is 1/6.
6/18 is 1/3 in its simplest form
It is: 18/90 = 1/5 in its simplest form
90/5 is 18/1 in its simplest form which is the same as 18
18/3 = 6/1 or 6 in its simplest form
1 15/18
The simplest form is 1/2 (one over two)
3 over 18 = 1/6
20/360 = 1/18 in its simplest form