Converting 64% to Its Decimal and Fractional Equivalents

Percentage Conversion with Fraction Simplification

The percentage 64% is equal to:

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Convert from percentages to fractions
00:05 The percentage equals a fraction where the numerator is the percentage (X) and the denominator is 100
00:10 Apply this formula to our exercise
00:28 Factor 64 into 4 and 16, and 100 into 25 and 4
00:34 Reduce wherever possible
00:41 This is the solution

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

The percentage 64% is equal to:

2

Step-by-step solution

We are given the percentage 64% and need to express it as a fraction.

First, recall that a percentage is simply a fraction with a denominator of 100. Therefore, we can write 64% as:

64100 \frac{64}{100}

Next, we need to simplify the fraction 64100 \frac{64}{100} to its lowest terms. To do this, we find the greatest common divisor (GCD) of 64 and 100. The GCD of 64 and 100 is 4.

Divide both the numerator and the denominator by their GCD:

64÷4100÷4=1625 \frac{64 \div 4}{100 \div 4} = \frac{16}{25}

Thus, 64% can be expressed as the fraction 1625 \frac{16}{25} .

Comparing this result to the multiple-choice options given, we see that the correct answer is:

1625 \frac{16}{25}

3

Final Answer

1625 \frac{16}{25}

Key Points to Remember

Essential concepts to master this topic
  • Rule: Any percentage equals that number over 100
  • Technique: Find GCD of 64 and 100, which is 4
  • Check: Verify 1625=0.64=64% \frac{16}{25} = 0.64 = 64\%

Common Mistakes

Avoid these frequent errors
  • Not simplifying the fraction to lowest terms
    Don't leave your answer as 64100 \frac{64}{100} = incorrect form! This fraction isn't in simplest form and won't match answer choices. Always find the GCD and divide both numerator and denominator by it.

Practice Quiz

Test your knowledge with interactive questions

Convert the fraction into a percentage:

\( \frac{24}{100}=\text{?} \)

FAQ

Everything you need to know about this question

Why do I need to simplify 64100 \frac{64}{100} ?

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Fractions should always be in lowest terms (simplest form). This means the numerator and denominator have no common factors other than 1. It makes fractions easier to work with!

How do I find the GCD of 64 and 100?

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List the factors: 64 = 2⁶, 100 = 2² × 5². The greatest common divisor is 2² = 4. You can also use the division method or factor trees.

Can I convert 64% to a decimal instead?

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Yes! 64% = 64 ÷ 100 = 0.64. Both 1625 \frac{16}{25} and 0.64 represent the same value, just in different forms.

What if I can't find the GCD easily?

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Start by dividing both numbers by small primes like 2, 3, 5. For 64 and 100: both divide by 2 twice, giving you 1625 \frac{16}{25} . Keep going until no common factors remain!

How do I check if my simplified fraction is correct?

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Convert back to decimal: 1625=16÷25=0.64 \frac{16}{25} = 16 ÷ 25 = 0.64 . Then 0.64 × 100 = 64%. If you get the original percentage, you're right!

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