How to write 0.21 as a percentage? How to convert 0.21 decimal to percent? What is the decimal number 0.21 as a percentage? These are all different questions asking the same thing.
Here we will not only give you the answer to 0.21 as a percentage, but also explain what it means to convert the decimal number 0.21 to percent and show you how to do it.
Look at the decimal number 0.21 as 0.21 out of one. Furthermore, percent means per hundred. So the task is to convert 0.21 out of one to 0.21 out of one hundred.
The equation to solve the problem is displayed below where x is the 0.21 as a percentage.
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We solve the equation for x above by first multiplying each side by one and then multiplying each side by one hundred. Thus, the answer to 0.21 as a percentage is:
21%
On this page we showed you how to calculate 0.21 as a percentage using a formula to illustrate clearly what it actually means to convert 0.21 to a percentage.
Now that you know the underlying process and explanation behind it, note that the shortcut to converting 0.21 to percent is simply to multiply 0.21 by one hundred to get the answer. (0.21 x 100 = 21%)
Another shortcut that is also easy to remember to get a decimal number like 0.21 as a percentage, is to move the decimal point two places to the right and add the percent (%) sign.
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