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10. \( 3 \frac{4}{5} \times 2 \frac{3}{4}= \)

Ask by Bird Tucker. in the United States
Feb 28,2025

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Answer

\( 3 \frac{4}{5} \times 2 \frac{3}{4} = 10 \frac{9}{20} \)

Solution

To solve 3 4/5 × 2 3/4, follow these steps: 1. Convert each mixed number to an improper fraction.  • For 3 4/5: Multiply the whole number 3 by the denominator 5 and add the numerator 4.   3 × 5 + 4 = 15 + 4 = 19, so 3 4/5 = 19/5.  • For 2 3/4: Multiply the whole number 2 by the denominator 4 and add the numerator 3.   2 × 4 + 3 = 8 + 3 = 11, so 2 3/4 = 11/4. 2. Multiply the improper fractions:  (19/5) × (11/4) = (19 × 11) / (5 × 4) = 209/20. 3. Convert the improper fraction 209/20 to a mixed number:  Divide 209 by 20. Since 20 × 10 = 200 and 209 - 200 = 9, the result is 10 with a remainder of 9.  Thus, 209/20 = 10 9/20. The final answer is 10 9/20.

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The Deep Dive

To solve \( 3 \frac{4}{5} \times 2 \frac{3}{4} \), first convert the mixed numbers to improper fractions. You'll get \( \frac{19}{5} \) for \( 3 \frac{4}{5} \) and \( \frac{11}{4} \) for \( 2 \frac{3}{4} \). Now, multiply these fractions: \[ \frac{19}{5} \times \frac{11}{4} = \frac{19 \times 11}{5 \times 4} = \frac{209}{20} \] Now, convert back to a mixed number: \( \frac{209}{20} = 10 \frac{9}{20} \). So, \( 3 \frac{4}{5} \times 2 \frac{3}{4} = 10 \frac{9}{20} \). --- Understanding fraction multiplication can feel a bit like mixing up a cake recipe – an art as much as a science! Each fraction you multiply contributes to the final flavor, and when you convert those mixed numbers, you’re basically measuring out the ingredients just right for the perfect blend. If you ever find yourself stuck or unsure, remember to double-check your fractions! A common mistake is failing to convert mixed numbers properly—it's like trying to bake without measuring your flour! Always start by turning those mixed numbers into improper fractions before throwing in the math.

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