What is 15 out of 20?

15 out of 20, expressed as a fraction, is 15/20. This can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 5.

Dividing 15 by 5 gives 3, and dividing 20 by 5 gives 4. Therefore, the simplified fraction is 3/4.

As a decimal, 15/20 is equal to 0.75. This is calculated by dividing 15 by 20.

As a percentage, 15/20 is equal to 75%. This is obtained by multiplying the decimal form (0.75) by 100. Understanding the relationship between Fractions, Decimals and Percentages is crucial in various mathematical and real-world applications. It's a simple Ratio and Proportion representation.