Math Problem Statement

Solve \(5 \frac{1}{2} \times 2 \frac{2}{3}\).

Solution

To solve the problem 512×2235 \frac{1}{2} \times 2 \frac{2}{3}, we need to convert each mixed number into an improper fraction and then perform the multiplication.

  1. Convert 5125 \frac{1}{2} to an improper fraction: 512=5×2+12=10+12=1125 \frac{1}{2} = \frac{5 \times 2 + 1}{2} = \frac{10 + 1}{2} = \frac{11}{2}

  2. Convert 2232 \frac{2}{3} to an improper fraction: 223=2×3+23=6+23=832 \frac{2}{3} = \frac{2 \times 3 + 2}{3} = \frac{6 + 2}{3} = \frac{8}{3}

  3. Now multiply the two improper fractions: 112×83=11×82×3=886\frac{11}{2} \times \frac{8}{3} = \frac{11 \times 8}{2 \times 3} = \frac{88}{6}

  4. Simplify 886\frac{88}{6}: 886=443=1423\frac{88}{6} = \frac{44}{3} = 14 \frac{2}{3}

After simplifying, the correct answer is: 142314 \frac{2}{3}

However, none of the options provided in the image match this answer, suggesting a possible error in the answer choices. Let me know if you have any questions or need further clarification!


Would you like more details on:

  1. Steps to convert mixed numbers to improper fractions?
  2. Why the multiplication of fractions involves multiplying numerators and denominators?
  3. Additional examples of simplifying improper fractions to mixed numbers?
  4. How to verify the result by reconverting to a mixed number?
  5. Further clarification on identifying errors in multiple-choice questions?

Tip: When working with fractions, always check if the result can be simplified to its lowest terms.

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Math Problem Analysis

Mathematical Concepts

Multiplication of Mixed Numbers
Conversion to Improper Fractions
Simplification of Fractions

Formulas

Mixed number to improper fraction: \(a \frac{b}{c} = \frac{a \times c + b}{c}\)
Multiplication of fractions: \(\frac{a}{b} \times \frac{c}{d} = \frac{a \times c}{b \times d}\)

Theorems

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Suitable Grade Level

Grade 6-7