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Fraction Calculators

Subtract Fractions Calculator

Subtract two fractions or mixed numbers and get the answer in simplest form, as a mixed number and as a decimal, with every step shown.

Enter values

Results update as you type.

Result

Answer

7/12

Mixed number
7/12
Decimal
0.58(3)
Step-by-stepShow
  1. Least common denominator: LCD(4, 6) = 12
  2. 3/4 = 9/12, 1/6 = 2/12
  3. 9 − 2 = 7 over 12
  4. Simplest form: 7/12

About the Subtract Fractions Calculator

Subtract two fractions or mixed numbers and get the answer in simplest form, as a mixed number and as a decimal, with every step shown.

Also known as: subtract fractions, subtracting fractions, fraction subtraction.

How to use this calculator

  1. Enter first fraction, second fraction.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Open “Step-by-step” to see how the answer was worked out.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

a/b − c/d = (ad − bc) / bd

Worked example

Using the values pre-filled in the calculator above:

  • First fraction: 3/4
  • Second fraction: 1/6

the calculator returns:

  • Answer: 7/12
  • Mixed number: 7/12
  • Decimal: 0.58(3)

Working

  1. Least common denominator: LCD(4, 6) = 12
  2. 3/4 = 9/12, 1/6 = 2/12
  3. 9 − 2 = 7 over 12
  4. Simplest form: 7/12