Improper Fraction to Mixed Number Calculator

Created by Hanna Pamuła, PhD candidate
Reviewed by Dominik Czernia, PhD candidate and Jack Bowater
Last updated: Jul 24, 2020

Welcome to the improper fraction to mixed number calculator - a tool which lets you convert an improper fraction to a mixed number in the blink of an eye. In the short article below, you'll learn the basics - such as what an improper fraction is. Also, we will show you step by step instructions on how to turn an improper fraction into a mixed number.

Since you're already here, peeking 👀 at this improper fraction to mixed number calculator, we suspect that you may be interested in other fraction topics:

If you don't want to go deep into details, we've built the comprehensive fractions calculator which can deal with seven basic fractions operations.

What is an improper fraction? Improper fraction definition

To talk about improper fraction definition, we need to start from a small revision - what is a fraction, in general?

💡 A fraction tells us how many equal parts of a whole thing we have. We write it as [a ratio](calc:258) of whole numbers, that are separated by line or a slash.

We call the top number numerator and the bottom one - denominator.

Image explaining what a fraction is, on the example of slice of a cake. 1 as numerator, 6 as denominator

So in the above example, we have 1 part out of 6 - 1/6 read as one-sixth.

Now we can come back to our key question: what is an improper fraction? According to the improper fraction definition:

💡 An improper fraction is the fraction when the numerator is larger than (or equal to) the denominator.

As the top number is equal or greater than the bottom number, we sometimes call the improper fraction a top-heavy fraction. The examples of the improper fractions are:

  • 🍰 10 slices of a cake, when each cake was cut to 6 slices,

  • 🍫 8 rows of the chocolate bar, if the whole chocolate bar has 5 rows,

  • 🍊 21 parts of orange, if we cut each orange to 8 equal pieces.

Image explaining what an improper fraction is. 10/6 of a pie, 8/5 of a chocolate bar, 21/8 of an orange

How to turn an improper fraction into a mixed number?

So, what does it mean, converting improper fractions to mixed numbers? All in all, a mixed fraction is just another way of expressing the improper fraction. But how does it work?

Look at the previous image again. In each of these examples, we have more than one whole thing, right? So, for example, instead of saying we have 8 rows of chocolate (and each bar has 5 rows), we could say - hey, I've one whole chocolate bar and additional 3 parts out of 5. And that's exactly how converting improper fractions to mixed numbers works!

Image explaining conversion from improper fractions to mixed numbers. 8/5 of a chocolate bar is the same as 1 3/5

Let's explain our example and see how to turn an improper fraction into a mixed number:

  1. Divide the numerator by the denominator (the top number by the bottom number).

If you divide 8 by 5, you get a quotient (whole number) and a remainder:

8/5 = 1 remainder 3

  1. Find the whole part of mixed number - take the whole number from the division


  1. Find the fractional part of mixed number - the remainder from the division is the new numerator while the denominator stays the same:


  1. To get mixed number, put the numbers together:

1 3/5

And that's it, 8/5 = 1 3/5

Sometimes you should also simplify the mixed fraction, but it's not a case here.

Improper fractions to mixed numbers calculator - an example

So let's quickly check how converting improper fractions to mixed numbers works in this tool. Let's say you have fraction 81/17 and you'd like to find it's equivalent as a mixed number:

  1. Enter the numerator of the improper fraction. It's 81.
  2. Input the denominator. It's 17 in our case.
  3. And that's it - the improper fractions to mixed numbers calculator shows the result:
81/17 = 4 13/17

Could it be more straightforward? 🙂

Hanna Pamuła, PhD candidate
Image: improper fraction to mixed number
Improper fraction
Numerator (n₁)
Denominator (d₁)
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