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Fraction Calculator Add, subtract, multiply, divide, simplify and convert fractions without doing the steps manually
Fraction operations
Add, subtract, multiply, divide
Simplify fraction
Reduce to lowest terms
Mixed numbers
Convert both ways
Compare fractions
See which is larger
What this does It works with proper fractions, improper fractions and mixed numbers in one place.
Best use Use it for school math, recipes, measurement math and quick fraction checking.
Important The simplified form and mixed-number form can look different but still represent the same value.
Section 1: Fraction operation
Enter the first fraction.
Choose what to do with the two fractions.
Enter the second fraction.
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Result shown below.
Controls which result style is emphasized.
Section 1: Simplify a fraction
This reduces the fraction to lowest terms.
Choose how the main answer is displayed.
Section 1: Convert mixed number and improper fraction
Whole number plus fractional part.
You can use either side as the main reference.
Section 1: Compare two fractions
First fraction to compare.
Second fraction to compare.
Main result
primary answer
Simplified form
lowest terms
Mixed or decimal
alternative view
Status
interpretation
Fraction size comparison
First value
Second / result value
Fraction summary
Case Result Meaning Status
Fraction summary
Mode used
Input
Equivalent form
Special detail
Main result
Simplified form
Mixed or decimal
Status
Plain answer
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What a fraction calculator actually tells you

A fraction calculator helps you work with values that are written as parts of a whole. It can combine fractions, reduce them to lowest terms, convert improper fractions to mixed numbers, and compare which fraction is larger. That makes it useful for school math, recipe scaling, measurement work and quick checks.

The key idea is that two fractions can look different but still mean the same amount. For example, 2/4 and 1/2 are equivalent. This is why simplification matters, it reveals the cleanest version of the same value.

The core formula

Add or subtract fractions by finding a common denominator
Multiply fractions by multiplying numerators and denominators
Divide fractions by multiplying by the reciprocal
Simplify by dividing numerator and denominator by their greatest common divisor
A mixed number combines a whole number and a fraction. An improper fraction has a numerator greater than or equal to the denominator.

How to read the result

ModeWhat it answersBest useCommon mistake
OperationsWhat is the result of combining two fractions?General fraction mathUsing different denominators incorrectly
SimplifyWhat is the fraction in lowest terms?Cleanup and checkingReducing only one side
Mixed numbersHow does the value convert both ways?Improper and mixed conversionMisplacing the whole number
CompareWhich fraction is larger?Ordering and checkingComparing numerators only

Why fraction simplification matters

Simplification makes fractions easier to read, compare and reuse. A complicated-looking answer can often reduce to a much cleaner form without changing its value. This is especially useful when checking homework, comparing measurements or presenting an answer clearly.

It also helps reveal equivalence. Once two fractions reduce to the same form, you know they represent the same quantity even if the original numbers looked different.

Frequently Asked Questions

How do you add fractions with different denominators?+
You first convert both fractions to a common denominator, then add the numerators. After that, simplify the result if possible. You cannot add denominators directly.
What is the difference between an improper fraction and a mixed number?+
An improper fraction has a numerator that is greater than or equal to the denominator, such as 13/5. A mixed number rewrites that as a whole number plus a fraction, such as 2 3/5. Both forms can represent the same value.
How do you simplify a fraction?+
Divide both the numerator and denominator by their greatest common divisor. For example, 18/24 simplifies to 3/4 because both values divide evenly by 6. This keeps the value unchanged while making it easier to read.
How do you divide fractions?+
Keep the first fraction, flip the second fraction, then multiply. This means division becomes multiplication by the reciprocal. After that, simplify the result if needed.
How can I tell which fraction is larger?+
You can compare them by converting both to a common denominator or by turning them into decimals. The larger decimal or larger adjusted numerator represents the larger fraction. Comparing only the numerator is not enough unless the denominators are the same.
Why does the calculator show both simplified and mixed-number forms?+
Because each form is useful in different situations. Simplified fractions are often the cleanest math answer, while mixed numbers are easier to read in measurements, recipes and everyday use. They can both describe the same amount.