What's 30 of 15?
In mathematics, percentage means a part of 100. So, 30 of 15 means calculating 30 parts of 100. To find 30 parts out of 100, we use a fraction. The number 30 is the numerator, and the number 100 is the denominator. When we write it as afraction, it becomes 30/100.
When we convert this fraction to a decimal, we divide the numerator by the denominator. So, 30 divided by 100 equals 0.3. This means that 30 percent of 15 is equal to 0.3.
Using a percent decimal number, we can also say that 30% of 15 is 0.3. As a fraction, we can write it as 30/100, and as a decimal, it is 0.3.
Finally, we can also represent this calculation visually with a pie chart. If we cut a pie into 100 pieces, and 30 of those pieces represent 15, then the remaining 70 pieces would be 85% of 15, since 100% – 30% = 70%.
So, what's 30 of 15? It's 0.3, which is 30/100, or 30% as a decimal, or 30% as a fraction of a whole.
