Question
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Compute. \( \frac{7}{3} \cdot\left(\frac{2}{3}-\frac{2}{9}\right) \) Answer:

Ask by Schwartz Deleon. in the United States
Jan 25,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

\[ \frac{28}{27} \]

Solution

To compute the expression: \[ \frac{7}{3} \cdot \left( \frac{2}{3} - \frac{2}{9} \right) \] Let's follow the steps below: 1. **Subtract the Fractions Inside the Parentheses:** \[ \frac{2}{3} - \frac{2}{9} \] To subtract these fractions, find a common denominator. The least common denominator (LCD) of 3 and 9 is 9. - Convert \(\frac{2}{3}\) to a denominator of 9: \[ \frac{2}{3} = \frac{2 \times 3}{3 \times 3} = \frac{6}{9} \] - Now subtract: \[ \frac{6}{9} - \frac{2}{9} = \frac{4}{9} \] 2. **Multiply by \(\frac{7}{3}\):** \[ \frac{7}{3} \cdot \frac{4}{9} \] Multiply the numerators and the denominators: \[ \frac{7 \times 4}{3 \times 9} = \frac{28}{27} \] 3. **Simplify the Result (if necessary):** The fraction \(\frac{28}{27}\) is an improper fraction and can be expressed as a mixed number: \[ \frac{28}{27} = 1 \frac{1}{27} \] However, it's often acceptable to leave the answer as an improper fraction. **Final Answer:** \[ \frac{28}{27} \]

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The Deep Dive

First, simplify the expression inside the parentheses: \(\frac{2}{3} - \frac{2}{9}\). To subtract these fractions, we need a common denominator. The least common multiple of 3 and 9 is 9. Convert \(\frac{2}{3}\) to ninths: \(\frac{2}{3} = \frac{2 \times 3}{3 \times 3} = \frac{6}{9}\). Now we can subtract: \(\frac{6}{9} - \frac{2}{9} = \frac{6 - 2}{9} = \frac{4}{9}\). Next, multiply this result by \(\frac{7}{3}\): \(\frac{7}{3} \cdot \frac{4}{9} = \frac{7 \cdot 4}{3 \cdot 9} = \frac{28}{27}\). Thus, the final answer is: \(\frac{28}{27}\).

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