Simplify ratios or solve proportions with a layout that keeps the inputs, the answer, and the reasoning visible together.
Last updated: June 2026 | By Patchworkr Team
A ratio compares two quantities. It can be written with a colon, with a slash, or as a fraction. Simplifying a ratio means dividing both terms by the greatest common divisor.
Proportions state that two ratios are equal. This calculator can solve a missing term when exactly one value is left blank.
The ratio 12:18 simplifies to 2:3 because both numbers are divisible by 6.
No. Simplifying a ratio here is limited to whole numbers so the result stays exact.
Exactly one blank is required to solve the proportion.
Yes. If one term is zero, the ratio is already as simple as it can be.
The calculator shows a decimal result using standard division.
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