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Find the reciprocal of \( 5 \frac{1}{2} \) Question Help: Video Messag

Ask by Ray Henry. in the United States
Jan 22,2025

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Answer

The reciprocal of \( 5 \frac{1}{2} \) is \( \frac{2}{11} \).

Solution

To find the **reciprocal** of \( 5 \frac{1}{2} \), follow these steps: ### Step 1: Convert the Mixed Number to an Improper Fraction A mixed number like \( 5 \frac{1}{2} \) can be converted to an improper fraction (a fraction where the numerator is larger than the denominator) using the following formula: \[ \text{Improper Fraction} = (\text{Whole Number} \times \text{Denominator}) + \text{Numerator} \] Applying this to \( 5 \frac{1}{2} \): \[ 5 \frac{1}{2} = \frac{(5 \times 2) + 1}{2} = \frac{10 + 1}{2} = \frac{11}{2} \] ### Step 2: Find the Reciprocal of the Improper Fraction The **reciprocal** of a fraction is obtained by flipping its numerator and denominator. So, the reciprocal of \( \frac{11}{2} \) is: \[ \text{Reciprocal of } \frac{11}{2} = \frac{2}{11} \] ### Conclusion Therefore, the reciprocal of \( 5 \frac{1}{2} \) is \( \frac{2}{11} \). \[ \boxed{\dfrac{2}{11}} \]

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The Deep Dive

To find the reciprocal of \( 5 \frac{1}{2} \), you first convert it to an improper fraction. \( 5 \frac{1}{2} \) is equal to \( \frac{11}{2} \) (since \( 5 \times 2 + 1 = 11 \)). The reciprocal is simply flipping the fraction, which gives you \( \frac{2}{11} \). So, the reciprocal of \( 5 \frac{1}{2} \) is \( \frac{2}{11} \)! Reciprocals are super fun! For any fraction, the reciprocal helps you understand division. If you multiply a number by its reciprocal (like \( \frac{11}{2} \times \frac{2}{11} \)), you’ll always get 1. This nifty property makes them incredibly useful in various applications like solving equations and working with ratios! If you’re looking to dive deeper into fractions and reciprocals, consider checking out some math puzzle books or online platforms like Khan Academy. There are tons of resources that turn learning about fractions into a game. You’ll find exercises that challenge your problem-solving skills while having a blast!

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