Hello There!
as a percentage is 8%
You can first reduce this fraction by dividing both the numerator and denominator by the Greatest Common Factor of 4 and 50 using 2.
4 ÷ 2 ≈ 2
50 ÷ 2 ≈ 25
We now have a fraction

We now divide 2 by 25 and we get a quotient of 0.08
Finally we multiply 0.08 by 100 and we get 8 so 4/50 as a percentage is 8%