What is 21/27 as a percentage?
Understand the Problem
The question is asking how to convert the fraction 21/27 into a percentage. To solve this, we will divide 21 by 27 and then multiply the result by 100 to get the percentage.
Answer
$77.8\%$
Answer for screen readers
The final percentage is $77.8%$.
Steps to Solve
- Divide the numerator by the denominator
To start, divide 21 by 27 to get a decimal.
$$ \frac{21}{27} = 0.777... $$
- Multiply by 100 to convert to percentage
Next, take the decimal result and multiply it by 100 to convert it into a percentage.
$$ 0.777... \times 100 = 77.7... $$
- Rounding the percentage
If needed, round the percentage to a suitable number of decimal places. In this case, we can round it to one decimal place.
So, we round $77.7...$ to $77.8%$.
The final percentage is $77.8%$.
More Information
When converting a fraction to a percentage, remember that a percentage represents a part per hundred. This method of conversion is helpful in many real-life contexts, such as calculating grades or understanding statistics.
Tips
- Forgetting to multiply the decimal by 100 after dividing.
- Not rounding properly, which can lead to slightly incorrect percentage values.
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