If the question should read, "What are the factors of 20?"
The general factors of 20 are : 20, 10, 5, 4, 2 and 1
The prime factors of 20 are : 22 and 5.
1/5
33/100
17/2
273/300
7.14 = 714/100
3 and 7/50th
Two thirds
One Eighth
13/100
It is: 1/4
50% is half.
42% = 21/50