🧮 Solve Math Problems Step by Step
Type your arithmetic, fractions or equations and I show all steps: operations, development, formulas and final answer. Includes OCR for photos and PDF export.
✏️ Your Problem
💡 Click to use
🕓 History
📊 Solution Steps
How does the Math Solver work?
The MultiIdeasWeb Solver is a free educational tool that analyzes your problem, automatically detects the type (arithmetic, fraction, linear, quadratic or exponential equation) and applies the correct algorithm showing each intermediate step with explanations.
Problem types it can solve
🔢 Arithmetic
600+730+3!Add, subtract, multiply, divide and factorial with integers and decimals.
➗ Fractions
4/5 + 3/10Operations with fractions, common denominator, simplification.
📈 Linear
2x + 3 = 15First-degree equations with unknown x. Step-by-step solving.
📐 Quadratic
(x+2)(x-3)=0Second-degree equations. Discriminant, general formula, factoring.
⚡ Exponential
3^(x+1)=81Equations with x in the exponent. Logarithms and numeric bisection.
❗ Factorial
5! + 100Factorial (n!) computation for combinatorics and probability.
Reference math formulas
Quadratic equation (general formula)
To solve ax² + bx + c = 0: x = (-b ± √(b²-4ac)) / (2a). The discriminant Δ = b²-4ac tells us how many solutions exist.
- Δ > 0 — Two distinct real solutions
- Δ = 0 — One double real solution
- Δ < 0 — No real solutions (complex)
Exponential equation with logarithm
For a^x = b: log both sides gives x·log(a) = log(b), so x = log(b) / log(a).
Factorial
The factorial of n, written n!, is the product of all positive integers up to n. Example: 5! = 5·4·3·2·1 = 120.
Adding and subtracting fractions
For a/b ± c/d: use common denominator. Result: (a·d ± c·b) / (b·d), then simplify with GCD.
How to leverage the Solver to learn
The tool works best when you use it to understand the process, not just copy the answer. Best practices:
- Try the problem first — Write your process on paper before checking the steps here.
- Compare step by step — Find where you got stuck or made an error.
- Note the formulas — Handwrite key formulas: quadratic, factorial, log. Muscle memory helps.
- Practice with worksheets — Complement with printable worksheets to reinforce offline.
- Export your solution as PDF — Save the steps to review before a test.
- Use OCR for homework — Take a photo of textbook problems instead of typing.
Frequently asked questions
What kind of problems can this solver handle?
How does the OCR feature work?
Can I export the solution as PDF?
How is a quadratic equation solved?
x = (-b ± √(b²-4ac))/(2a). The discriminant tells if there are two, one, or no real solutions.Is it really free with no sign-up?
What is factorial and how to compute it?
n!, is the product of all positive integers up to n. Example: 5! = 120.How is an exponential equation solved?
a^x = b: x = log(b)/log(a). For mixed cases we use numerical bisection.