% Fractions & Percent
Ratio Calculator
Simplify a ratio a : b to lowest terms.
Result
FAQs
What does the Ratio Calculator do?
The free MathDigits Ratio Calculator (ratio calculator) helps you simplify a ratio a : b to lowest terms. Results appear instantly in your browser — no account required.
How do I use the Ratio Calculator correctly?
Enter each value in the labeled fields, double-check signs and decimals, then tap Calculate. If a field is optional, leave it blank only when the tool allows it.
Is the Ratio Calculator free for students and teachers?
Yes. All MathDigits online calculators are free. Teachers can project the page; students can verify homework steps.
How should I practice after using the Ratio tool?
Confirm one answer here, then switch to a printable worksheet or timed practice quiz on MathDigits so you build fluency without relying on the calculator every time.