Ratio Calculator
Simplify any two-number ratio to lowest terms via GCD — paint mixes, screen sizes, shares. Reduce 150:225 to 2:3 in one pass — free, runs locally.
How to Use the Ratio Calculator
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Frequently Asked Questions
Can it split money by ratio?
No — this tool simplifies two-number ratios only: no totals, no three-part splits. Simplify here first, then divide by hand (parts sum to the divisor, each share = total ÷ parts sum).
How do I simplify 150:225?
Divide by the greatest common divisor (75): 150:225 simplifies to 2:3. Simplified ratios mix paint and share profits without rounding drift.
Ratio vs fraction — what's different?
A ratio compares parts (2:3); a fraction takes part over whole (2/5). The tool shows the reduced ratio only — read part-over-whole fractions off it yourself.
Do my recipe numbers leave the browser?
No — all computation runs locally in your browser. Nothing leaves your device.
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Last updated October 2026