Ratio simplifier & proportion
Ratio simplifier & proportion: use operation, first ratio · first term, first ratio · second term. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
a:b = c:d ⇒ d = bc/a; simplify using the greatest common divisor.
Variables & units
- Operation
- Select an option
- First ratio · first term
- Numeric value · minimum -1000000000, maximum 1000000000
- First ratio · second term
- Numeric value · minimum -1000000000, maximum 1000000000
- Second ratio · first term
- Numeric value · minimum -1000000000, maximum 1000000000
Worked example
2:3 = 8:12. The ratio 12:18 simplifies to 2:3.
Assumptions
Simplification uses integer ratio terms. A ratio with a zero second term is not supported.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
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