Add, subtract, multiply or divide fractions and mixed numbers, with the answer simplified. No sign-up, no uploads: everything runs in your browser, results appear instantly, and your data never leaves your device. Built for everyday use on phones and desktops alike.
What does this tool do?
Adds, subtracts, multiplies and divides fractions (and mixed numbers), showing each step and the simplified result — with decimal equivalents. A homework checker and a kitchen helper in one.
The Fraction Calculator also serves as a learning aid: watching results change as you drag inputs builds intuition for how the underlying formula behaves — which input moves the answer most, where the diminishing returns start, and what “good” looks like in real numbers rather than abstractions.
The interface keeps things practical: the inputs are “Whole”, “Numerator”, “Denominator” and “Operation”; the “op” control offers “+”, “−”, “×” and “÷”. Results update live as you work — there is no waiting and nothing to submit.
How do I use this tool?
Enter your figures below — every result updates the instant you type, so comparing scenarios is just a matter of changing a number and watching the answer move.
- Enter your values in “Whole”, “Numerator”, “Denominator” and the other fields.
- Results update instantly as you type — no button to press.
How does it work?
Addition/subtraction use common denominators (a/b ± c/d = (ad ± bc)/bd); multiplication multiplies across; division flips the second fraction. Results reduce via the GCD, and improper fractions convert to mixed numbers on request.
The formula used is the standard one taught and published for this calculation — the tool does not invent methods. Where conventions differ (rounding, day-count, tax treatment), the page follows the common Pakistani practice and says so, so the result matches what local institutions expect.
Use cases in Pakistan
Fractions rule Pakistani kitchens (¾ cup flour, ½ kg sugar) and BISE maths exams alike. Tailors add fractional inches, carpenters halve measurements, and shopkeepers split bulk goods — this checks the arithmetic instantly.
Families use it for household budgeting and school-fee planning; small businesses for pricing and payroll math; students for everything from BISE numericals to CSS preparation. Wherever the same calculation is repeated monthly — bills, salaries, savings targets — this page replaces the phone-calculator ritual.
Limitations
It computes exact rational arithmetic; decimal display rounds. For very large numerators/denominators the numbers get unwieldy — that is the math, not a bug.
Assumptions are stated on the page — read them before trusting the headline number for money, health or legal decisions. A calculator amplifies the quality of its inputs: careful numbers in, trustworthy numbers out.
Frequently asked questions
How do I add fractions?
Find a common denominator, add the numerators, simplify. Enter them above to see each step. For figures that go into applications or documents, double-check the inputs against the source — the math is exact, but only for the numbers you enter.
What is a mixed number?
A whole plus a fraction, like 2½. Convert to an improper fraction (5/2) before calculating. Try varying one input at a time to see which assumption drives the result; that sensitivity check is often more valuable than the headline number.
How do I simplify?
Divide top and bottom by their greatest common divisor. The tool reduces automatically. Save or screenshot the result with its inputs when the figure matters later — reconstructing “what did I enter?” is harder than it sounds.
Fractions vs decimals?
Fractions are exact (1/3); decimals approximate (0.333…). The tool shows both. For figures that go into applications or documents, double-check the inputs against the source — the math is exact, but only for the numbers you enter.
Is my data uploaded or stored?
No. This tool runs entirely in your browser — what you type or paste never leaves your device, is never sent to a server, and is never stored. Closing the tab removes all trace. Try varying one input at a time to see which assumption drives the result; that sensitivity check is often more valuable than the headline number.
Is it really free? Do I need an account?
Yes, free, and no account needed. Open the page and use it — no sign-up, no trial, no watermark on results. Save or screenshot the result with its inputs when the figure matters later — reconstructing “what did I enter?” is harder than it sounds.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested