Ratio simplifier

Client

Reduce a:b to simplest form—pair with GCD & LCM.

About Ratio simplifier

Reduce ratio a:b to lowest terms using GCD—whole-number ratios in your browser. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

12:8 → 3:2 (÷ 4)

Nearby workflows on Toolcore

  • GCD & LCM calculator — Greatest common divisor and least common multiple for two non-negative integers—BigInt, local only. when units or numeric output should be checked on a related calculator.
  • Percentage calculator — Percent of a value, ratio to percent, and percent change—no server round-trip. when units or numeric output should be checked on a related calculator.
  • Percent change — Calculate percentage increase or decrease from an old value to a new one—local math in your browser. when units or numeric output should be checked on a related calculator.
  • Math expression evaluator — Evaluate basic + − × ÷ arithmetic with parentheses in your browser—no variables. when units or numeric output should be checked on a related calculator.

Common use cases

  • Simplify recipe or mix ratios.
  • Reduce odds or proportions for comparison.

Common mistakes to avoid

  • Zero in the denominator

    The second part b must be non-zero.

FAQ

Negative ratios?

Only non-negative whole numbers are accepted.

Is data uploaded?

No.

More tools

Related utilities you can open in another tab—mostly client-side.