Fractions Whole Numbers Calculator
Mixed Number Calculator works out Mixed number and Improper fraction from Whole number, Numerator and Denominator. The default figures on this page give mixed number of 2/5; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
2 steps
- 2/5: divide 2 by 5 - the quotient 0 is the whole part and the remainder 2 is the new numerator.
- So 2/5 = 2/5.
Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed
What the Mixed Number Calculator calculates
Converts a mixed number to an improper fraction and back, and adds, subtracts, multiplies or divides two mixed numbers using exact rational arithmetic.
How to use this Mixed Number Calculator
Enter Whole number, Numerator, Denominator and Operation. Mixed number updates as you type, and “Use a worked example” loads checked figures you can adjust. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Mixed number, Improper fraction and Improper numerator.
The method follows Common Core State Standards for Mathematics, 4.NF.B.3.c and 5.NF.A.1 (mixed numbers and equivalent improper fractions) and NIST Digital Library of Mathematical Functions, §1.2 (rational number algebra).
3 2/5 as an improper fraction example
With Whole number: 3, Numerator: 2, Denominator: 5, the calculator returns Improper fraction: 17/5, Improper numerator: 17, Improper denominator: 5. This example is checked against an independent source in the test suite.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
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Frequently asked questions
How do you calculate mixed fractions?
Converts a mixed number to an improper fraction and back, and adds, subtracts, multiplies or divides two mixed numbers using exact rational arithmetic. Open “How this is worked out” beside the result to see each step for your own figures.
Can you provide a calculator for dividing mixed fractions?
Converts a mixed number to an improper fraction and back, and adds, subtracts, multiplies or divides two mixed numbers using exact rational arithmetic. Put your own figures in above and the working updates beside the result. For scale, the default figures on this page give 2/5.
How do I convert mixed numbers to improper fractions quickly?
It needs Whole number, Numerator, Denominator, Operation, Second whole number and Second numerator. Nothing else is required, and the figures stay in your browser.
How can I simplify mixed fractions?
The result gives Mixed number, Improper fraction, Improper numerator, Improper denominator, Whole part and Fraction numerator, each labelled with its unit so the figure can be read on its own.
What information do I need for the Mixed Number Calculator?
You need Whole number, Numerator, Denominator, Operation, Second whole number, Second numerator, Second denominator and Decimal places. The page opens with default figures that give mixed number of 2/5, so you can see the scale before entering your own.
What does this Mixed Number Calculator show?
It shows Mixed number, Improper fraction, Improper numerator, Improper denominator, Whole part, Fraction numerator, Fraction denominator and As a decimal, with the working and any warnings for your entries.