Pregunta
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\( 87.5 \% \) is equivalent to what fraction in reduced terme?

Ask by Weber Guerrero. in the United States
Feb 03,2025

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\( 87.5\% \) is equal to \( \frac{7}{8} \).

Solución

To convert \( 87.5\% \) to a simplified fraction, follow these steps: 1. **Convert the Percentage to a Fraction:** \[ 87.5\% = \frac{87.5}{100} \] 2. **Eliminate the Decimal:** Multiply both the numerator and the denominator by 10 to remove the decimal point: \[ \frac{87.5 \times 10}{100 \times 10} = \frac{875}{1000} \] 3. **Simplify the Fraction:** Find the greatest common divisor (GCD) of 875 and 1000. - Prime factors of 875: \( 5^3 \times 7 \) - Prime factors of 1000: \( 2^3 \times 5^3 \) The GCD is \( 5^3 = 125 \). Divide both the numerator and the denominator by 125: \[ \frac{875 \div 125}{1000 \div 125} = \frac{7}{8} \] So, \( 87.5\% \) in reduced fraction form is: \[ \boxed{\dfrac{7}{8}} \]

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Bonus Knowledge

To convert \( 87.5\% \) to a fraction, you can start by rewriting it in decimal form as \( 0.875 \). This can be expressed as \( \frac{875}{1000} \). To reduce this fraction, divide the numerator and the denominator by their greatest common divisor, which is \( 125 \). So, \( \frac{875 \div 125}{1000 \div 125} = \frac{7}{8} \). Therefore, \( 87.5\% \) is equivalent to \( \frac{7}{8} \) in reduced terms. Now, for a little extra fun, did you know that percentages are actually just fractions of 100? The term "percent" comes from "per centum," which means "by the hundred" in Latin. So, next time you're converting percentages, just remember that they are fractions in disguise, waiting to be revealed in their simplest form! If you ever find yourself fumbling with fractions, an easy rule of thumb is to always look for factors. Start with the smallest prime numbers like 2, 3, 5, and 7 to find common factors in the numerator and denominator. Most mistakes stem from rushing ahead without finding those common primes! So take your time—your future self will thank you for it!

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