You are here:

Basic Math/Percentages

Advertisement


Question
Hi John,

What percentage is 1 man in 20 men?  How many men in 1 hundred men would 1 man in 20 men be?



Sincerely,
Angel

Answer
Hello, Angel.

To convert a fraction into a percentage, first divide the denominator of the fraction into the numerator. In this case, you'd divide 20 into 1. 20 divided into 1 equals .05. Next, to convert this decimal into a percentage, simply move the decimal point two places to the right. So, .05 becomes 5%.

Answer: 5%.

Since percent means "out of 100" then we know that this means that 5% means "5 out of 100." However, if you didn't know what percent means, you can answer this by asking how many times greater than 20 100 is. 100 is 5 times greater than 100 (20 x 5 = 100), and so, if 1 out of 20 persons makes for 5%, then 5 out of 100 persons would also equal 5%.

Answer: 5 men.

You can check this by seeing if the fractions 5/100 and 1/20 are equal. 5/100 does simplify to 1/20, and so this checks out.

I hope this helps.

Regards,
John

Basic Math

All Answers


Answers by Expert:


Ask Experts

Volunteer


John Zalewski

Expertise

I can help you solve problems involving fractions, decimals, ratios, and algebra. I can teach you how to do math faster, and even in your head. I can teach math definitions, and help you study, if necessary. Please do not ask any graphing, trigonometry, or calculus questions. Try to work through homework questions before asking for assistance.

Experience

I routinely process numbers of all kinds in my head, without need of a calculator.

Education/Credentials
I was an A math student while in high school.

©2016 About.com. All rights reserved.