Reviewed by Phoebe Belza-Barrientos
What is 20% of 15?
Answer: 20% of 15 is 3
Finding a percentage of a number is a fundamental math skill, useful in daily life for calculating discounts, tips, and data analysis. This problem asks you to determine what 20% of the number 15 is, which involves basic multiplication or the use of fractions.
Methods
Math Tutor Explanation Using the Percentage as a Decimal Method
One of the simplest ways to find a percentage of a number is to convert the percentage to a decimal and multiply by the number.
Step 1: Step 1: Convert 20% to a decimal by dividing by 100, which gives 0.20
Step 2: Step 2: Multiply 0.20 by 15 to get 3
Math Tutor Explanation Using Fraction Method
Alternatively, you can express the percentage as a fraction and multiply by the given number.
Step 1: Step 1: Write 20% as the fraction 20/100 or simplified to 1/5
Step 2: Step 2: Multiply 1/5 by 15 to get 3
Step 1:
Step 2:
Math Tutor suggests: Practice More Percent Calculations
Strengthen your understanding of percentage problems with these similar exercises.
FAQ on Calculating Percentages
How do you convert a percentage to a decimal?
Divide the percentage by 100 to get its decimal form.
Can you find a percentage of any number?
Yes, you can calculate a percentage of any number using the same multiplication method.
What is the best way to check your answer?
Reverse the operation; for example, check if your result is indeed 20% of the original number.
Why is finding percentages useful?
Percentages are commonly used for discounts, interest rates, and understanding proportions in data.
Math & reading from 1st to 9th grade
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