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Ratio Calculator – Simplify, Scale & Find Missing Terms

Ratio Calculator

• Simplify
• Scale
• Missing Term

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: Enlarge Shrink Clear

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Our free online Ratio Calculator helps you solve ratios step by step. You can:

• Simplify Ratios – Reduce numbers to their lowest terms (e.g., 4:6 → 2:3).
• Scale Ratios – Enlarge or shrink ratios by a chosen factor.
• Find Missing Terms – Calculate unknown values in ratios and proportions.

Ratios are widely used in mathematics, finance, cooking, map reading, and daily life. With this tool, you can easily compare quantities, scale recipes, solve math problems, and more.

Simply enter your values, choose the operation, and get instant results with explanations.