Answer:
80%
Explanation:
"percent" means "per 100" or "out of 100".
16/20 can be written as a fraction with 100 in the denominator.
Multiply both the numerator and denominator by 5:
16/20 = 80/100
80/100 is 80 out of 100 which means it's 80%.
Answer: 16/20 = 80%