Question

what are the equivalent fraction and decimal for 20%

Answer 1

.2 (simplified from 0.20)

2/10 (simplified from 20/100)

Answer 2

Well, you know that 20% is out of 100.
So, take a fraction that is equivalent to 20% of 100. ( 2/10 works fine) or, 1/5
Then, take 20% and luckily, 20% is a benchmark so .2 (out of 10) works fine.