Question
\begin{tabular}{l} Question 2 \\ Divide. Write your answer in lowest tehms. Leave your answer as an improper fraction or whole number, \\ necessary. \\ \( \frac{3}{22} \div \frac{21}{2} \) \\ Question Help: \( \square \) Video \( 1 \square \) Video 2 \\ \hline Message instructor D Post to forum \end{tabular}
Ask by Schofield Sandoval. in the United States
Jan 22,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
\[
\frac{1}{77}
\]
Solution
To solve the division of two fractions, follow these steps:
**Problem:**
\[
\frac{3}{22} \div \frac{21}{2}
\]
**Step 1: Rewrite the Division as Multiplication by the Reciprocal**
Dividing by a fraction is the same as multiplying by its reciprocal. The reciprocal of \(\frac{21}{2}\) is \(\frac{2}{21}\).
\[
\frac{3}{22} \div \frac{21}{2} = \frac{3}{22} \times \frac{2}{21}
\]
**Step 2: Multiply the Numerators and the Denominators**
Multiply the numerators (top numbers) together and the denominators (bottom numbers) together.
\[
\frac{3 \times 2}{22 \times 21} = \frac{6}{462}
\]
**Step 3: Simplify the Fraction**
To simplify \(\frac{6}{462}\), find the greatest common divisor (GCD) of 6 and 462 and divide both the numerator and the denominator by that number.
1. **Find the GCD of 6 and 462:**
- The factors of 6 are 1, 2, 3, 6.
- The factors of 462 are numerous, but the largest common factor with 6 is 6.
2. **Divide both numerator and denominator by the GCD (6):**
\[
\frac{6 \div 6}{462 \div 6} = \frac{1}{77}
\]
**Final Answer:**
\[
\frac{1}{77}
\]
This is the fraction in its lowest terms as an improper fraction.
Reviewed and approved by the UpStudy tutoring team
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Beyond the Answer
To divide fractions, you multiply by the reciprocal of the second fraction. So in your problem \( \frac{3}{22} \div \frac{21}{2} \), you'll first flip \( \frac{21}{2} \) to get \( \frac{2}{21} \). Now, it becomes \( \frac{3}{22} \times \frac{2}{21} = \frac{3 \times 2}{22 \times 21} = \frac{6}{462} \). Next, simplify \( \frac{6}{462} \). Both the numerator and the denominator can be divided by 6, giving you \( \frac{1}{77} \). So your answer in lowest terms is \( \frac{1}{77} \)!