It is: 18/81 = 2/9 in its simplest form
18/81 = 2/9 simplified
18/81 = 2/9 (divide top and bottom by the hcf of 18 & 81 = 9)
81/18 = 9/2
2/9
2/9
18/27 minus 44/81 is 10/81
18/81 = 6/27 = 2/9
81 over 100 is already in simplest form.
17/81 is in its simplest form.
The simplest form for 81 over 90 is 9/10
5/81 is the simplest form.
64/81 is in its simplest form.