Math
Ratio Calculator
Reduce ratios and calculate scaled parts from a target total.
Your details
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Your result
Based on the values you enter
Ratio result
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Your result explanation will appear here.
Useful next checks
- Use the result to check your working or homework.
- Change one input at a time to see how the answer moves.
- Read the method below if you want the steps.
Intro
Use this ratio calculator to simplify two-part ratios or scale them to a total.
How it works
Enter part A and part B. Optionally enter a total to split it according to the ratio.
Formula
Ratios are simplified by dividing both parts by their greatest common factor.
Example calculation
The ratio 4:6 simplifies to 2:3. If scaled to a total of 100, the parts are 40 and 60.
Frequently asked questions
- Ratio parts should be positive values.
- Scaling keeps the same proportion while changing the total size.
What does simplify mean?
Simplifying divides both sides by their greatest common factor.
Can I scale a ratio?
Yes. Enter a target total to split it according to the ratio.