Skill: Convert mixed numbers to improper fractions

Explanation and Free Practice Resources

A mixed number with a whole-number part and a proper fractional part represents the sum of whole groups and a fraction of the same unit; it can therefore be rewritten as an equivalent fraction by multiplying the whole-number part by the denominator and adding the numerator, while retaining the denominator. This reasoning connects mixed-number representation to fraction operations and equivalence; the scope is positive mixed numbers with nonzero denominators, excluding signed numbers, improper fractional parts within the mixed-number notation, and more generalized forms.

Detailed Explanation: Convert mixed numbers to improper fractions

A mixed number has a whole-number part and a fraction part. To convert it to an improper fraction:

  1. Multiply the whole number by the denominator.
  2. Add the numerator.
  3. Keep the same denominator.

Example: Convert 3253\frac{2}{5} to an improper fraction.

  • Multiply the whole number by the denominator:
    3×5=153 \times 5 = 15
  • Add the numerator:
    15+2=1715 + 2 = 17
  • Keep the denominator, 55.

Therefore,

325=1753\frac{2}{5}=\frac{17}{5}

The denominator stays the same because the fifths are still the same-sized parts.

Learn by doing: Convert mixed numbers to improper fractions

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Fraction Conversion - To Improper


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