To simplify 20 over 80, you need to find the greatest common factor (GCF) of both numbers, which is 20. Divide both the numerator and denominator by 20 to get 1 over 4. Therefore, 20 over 80 simplified to its simplest form is 1 over 4.
36/80 in simplest form is 9 over 20
4/80 = 1/20 or 5% or .05 in it's simplest form.1/20
76/80 = 19/20
9/20
7/20
3/20
17/20
20/21
68/80 = 34/40 = 17/20 <-----------------------------
The answer is 4/5. To get this you divide 80 by 20 and 100 by 20.
28/80 = 7/20
21/80 is already in its simplest form