38/40 as a percentage is 95.00%. This simple fraction shows how close it is to a whole, just a little under one.
The fraction 38/40 can be reduced to 19/20, which is still the same value. Whether you write it as 38/40, 19/20, or 95.00%, the meaning doesn’t change.
Seeing the percentage helps when you compare it to other numbers, like test scores or discounts. A result of 95.00% tells you that the amount is very high, almost perfect.
In everyday use, you might round the percentage to 95% for quick reference, but the precise value is 95.00%, keeping two decimal places for accuracy.