It is: 1 to 4
1/4 or 0.25
7/20
80% as a fraction in lowest terms is 4/5
It is: 80% = 4/5
If that is 9/20, it is already in its lowest term.
It means the difference between the lowest and highest values E.G 100 - 80=20, so the range is 20.
The fraction that is the lowest form of 35 over 80 is 7/16
80
32/80 = 2/5
4/5
4/5
3/5