Mixed Number to Improper Fraction Calculator

This mixed number to improper fraction calculator works like a charm - it not only converts one fraction form to the other, but also it shows the step by step solution.

Clear
Result11/4in lowest terms
Mixed number2 3/4
Decimal2.75
Percentage275%

Converting to an improper fraction

Multiply2 × 4 = 8
Add the numerator8 + 3 = 11
Improper fraction11/4
Lowest terms11/4

The method

numerator = whole × denominator + numerator

The rules in one place

  • Adding and subtracting needs a common denominator first. The lowest common denominator keeps the numbers smallest, but any common denominator works.
  • Multiplying needs no common denominator at all — multiply across the top and across the bottom.
  • Dividing means multiplying by the reciprocal: flip the second fraction and multiply.
  • Reducing divides top and bottom by their greatest common divisor. It never changes the value.

Why lowest terms matter

6/8 and 3/4 are the same number, but 3/4 is easier to compare, easier to check and conventional in an answer. Reducing also keeps later arithmetic small: multiplying unreduced fractions makes the numbers grow fast, and cancelling first avoids that.