Ratio Calculator
Simplify ratios and solve ratio proportions.
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Introduction
Ratio Calculator — Simplify ratios and solve ratio proportions. Enter A, B to get an instant, accurate result.
Formula
A ratio a:b is simplified by dividing both a and b by their greatest common divisor (GCD).
Step-by-step
- Enter the A.
- Enter the B.
- Click Calculate to see your result instantly.
Real-world example
Example: With A = 10, B = 4, the Ratio Calculator gives A: 5, B: 2, Gcd: 2.
Frequently Asked Questions
How do I simplify a ratio like 20:8?
Enter 20 and 8 — the calculator divides both by their GCD (4) to give 5:2.
Does order matter?
Yes, A:B is not the same as B:A — keep your values in the order you want the ratio expressed.
What inputs does the Ratio Calculator need?
You'll need to provide: A, B. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Ratio Calculator?
The Ratio Calculator applies the formula exactly as calculated — A ratio a:b is simplified by dividing both a and b by their greatest common divisor (GCD). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Ratio Calculator free to use?
Yes, the Ratio Calculator is completely free, requires no signup, and runs instantly in your browser.
About the Ratio Calculator
The Ratio Calculator uses a real, verifiable formula — A ratio a:b is simplified by dividing both a and b by their greatest common divisor (GCD). — so results are accurate every time, not an approximation.