How do you convert a fraction to a percentage?

To convert a fraction to a percentage, the correct method involves dividing the numerator by the denominator and then multiplying the result by 100. This process effectively transforms the fraction into a decimal and then scales it to represent a part out of 100, which is what a percentage signifies.

For example, consider the fraction 3/4. First, you would divide 3 by 4, which equals 0.75. Next, multiplying 0.75 by 100 gives you 75%. This means that 3/4 is equivalent to 75%.

The other methods do not yield a correct conversion to a percentage. Adding the numerator and denominator or subtracting one from the other does not relate to the fraction's value in terms of a percentage. Similarly, merely multiplying the denominator by 100 fails to provide any meaningful relationship between the fraction and a percentage. Thus, dividing the numerator by the denominator and then multiplying by 100 is the only correct approach to convert a fraction into a percentage.