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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

  1. Divide the numerator by the denominator

To start, divide 21 by 27 to get a decimal.

$$ \frac{21}{27} = 0.777... $$

  1. Multiply by 100 to convert to percentage

Next, take the decimal result and multiply it by 100 to convert it into a percentage.

$$ 0.777... \times 100 = 77.7... $$

  1. 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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