Subtracting Fractions

This calculator allows you to subtract one fraction from another. Please enter your fraction problem below and press "Calculate" to get the answer:

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Below are step-by-step instructions showing you how to solve your Subtracting Fractions problem:

Step 1) We plug the numbers you entered into our Subtracting Fractions Formula.

Step 2) If necessary, we divide the numerator and denominator by their greatest common divisor to get the fraction in its lowest possible form.

Step 3) If the answer above is an improper fraction, then we convert it to a mixed or whole number.

Math Formula For Subtracting Fractions

Here is the math formula that our calculator uses to subtract fractions:

$\frac{A}{B}-\frac{C}{D}=\frac{\mathrm{\left(AD - BC\right)}}{\mathrm{BD}}$