Partial Fraction Calculator
Split 1/(px+q)(rx+s) into A and B terms

Partial Fraction Calculator turns split 1/(px+q)(rx+s) into A and B terms into an instant, step-by-step result. You provide p (first factor px+q), q and r (second factor rx+s); the tool does the rest in real time. The calculation is displayed with all its working, so the number always makes sense. Everything runs in your browser — your inputs are not sent to our servers, and it works offline after the first visit (currency conversion needs a live connection). One of 1206+ free CalcProMaster calculators covering partial fraction decomposition calculator algebra rational expression, free online partial fraction calculator and similar everyday questions. Open Partial Fraction Calculator, enter your numbers, and you will have a trustworthy answer before you know it.
What does the page calculator do?
Partial Fraction Calculator works out the split 1/(px+q)(rx+s) from the p, q, and r, following standard Math conventions — the page defaults produce a split 1/(px+q)(rx+s) of A = 0.5, B = 0.5.
- Inputs: p, q, and r.
- Output: the split 1/(px+q)(rx+s), plus the intermediate steps behind it.
- Method: the standard Math formula, evaluated entirely in your browser.
Quick answer
With the default inputs (p of 1, q of -1, r of 1), partial fraction calculator returns a split 1/(px+q)(rx+s) of A = 0.5, B = 0.5. Assumptions and limits are summarized below.
How does it work?
Partial Fraction Calculator computes the split 1/(px+q)(rx+s) directly from your inputs — the p, q, and r feed the formula. Nothing is uploaded: the math runs locally in your browser and the result appears as you type.
How it works
Partial Fraction Calculator turns the values you enter into a verified split 1/(px+q)(rx+s) — the formula, every intermediate step, and the assumptions sit beside the result instead of hidden behind it.
How to use it
- p — a core input the formula applies directly — keep the units consistent with the label.
- q — a core input the formula applies directly — keep the units consistent with the label.
- r — used in the first stage of the calculation, so entering it accurately matters more than any later refinement.
- Check the result. The split 1/(px+q)(rx+s) is shown as soon as the inputs are valid, and the steps beneath it show exactly how it was derived.
- Explore. Each input change recalculates instantly; watching the split 1/(px+q)(rx+s) move tells you which factor dominates your case.
The formula behind the result
Partial Fraction Calculator substitutes the p, q, and r into the formula, evaluates it in the order shown in the steps panel, and reports the split 1/(px+q)(rx+s) rounded for readability.
Worked example: with p of 1, q of -1, r of 1, this partial fraction calculation returns A = 0.5, B = 0.5. The same run reports Result: 0.5/(1x+-1) + 0.5/(1x+1) | Check: combine back over the common denominator.
The steps it follows:
- Write A/(px+q) + B/(rx+s) = 1/((px+q)(rx+s))
- Multiply both sides by the denominator: A(rx+s) + B(px+q) = 1
- Match coefficients — solve the 2x2 system
- A = s/(ps−qr) = 0.5000, B = −q/(ps−qr) = 0.5000
Substitute your own values and the same steps produce your answer — that is the point of a calculator that shows its working.
Understanding the result
To interpret the result from partial fraction calculator, read it together with the intermediate figures — the pairing is what makes the number auditable.
Where it helps
Common scenarios for Partial Fraction Calculator: planning ahead, comparing scenarios side by side, and double-checking the split 1/(px+q)(rx+s). The step list makes it equally useful for learning the method and for double-checking someone else's numbers.
Common mistakes
Mixing up inputs with similar labels is the classic partial fraction mistake; the steps panel is the quickest way to spot a value that landed in the wrong field.
Tip: If the split 1/(px+q)(rx+s) looks wrong, read the steps panel before re-entering anything; it usually shows exactly where the number departed from expectation.
Assumptions and limitations
The model behind Partial Fraction Calculator covers the standard case; special cases, edge values, or jurisdiction-specific rules may need manual adjustment.
Why use this calculator
Because it is fast and private — Partial Fraction Calculator runs entirely in your browser, nothing is uploaded, and no account is needed.
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Frequently Asked Questions
What does the tool calculate?
Partial Fraction Calculator answers one question well — given the values you provide, what is the figure? Enter the p, q, and r, and the result panel returns the value with the full working underneath. Because the page doubles as documentation: Partial Fraction Calculator puts the formula, a worked example, and the assumptions right beside the calculator.
How is the split 1/(px+q)(rx+s) calculated?
The first steps are write a/(px+q) + b/(rx+s) = 1/((px+q)(rx+s)), then multiply both sides by the denominator: a(rx+s) + b(px+q) = 1. The relationship between the inputs is fixed by the formula, and Partial Fraction Calculator makes each substitution explicit so nothing about the split 1/(px+q)(rx+s) is hidden.
What do I need to use the Partial Fraction Calculator?
The p, q, and r it asks for, or the page defaults if you just want to see the calculation work. Each input maps directly to the formula, and changing any one of them recalculates the split 1/(px+q)(rx+s) instantly.
What does the result from the tool mean?
The main number the partial fraction calculator returns is the split 1/(px+q)(rx+s) for your exact inputs, and the supporting figures and step list give it context. The split 1/(px+q)(rx+s) is only as complete as the inputs: anything the page does not ask for (fees, variability, local rules) sits outside the calculation.
When is the page most useful?
Students, planners, and professionals use it for planning ahead, comparing scenarios side by side, and double-checking the split 1/(px+q)(rx+s), and for sanity-checking numbers that arrived from somewhere else. Bookmark this page — after the first visit it works offline, so the split 1/(px+q)(rx+s) is one tap away even without a connection.