Turn any ratio into a reduced fraction quickly. See steps, decimals, percentages, and exports clearly. Learn the method with examples and simple guidance today.
| Ratio | Whole-Number Fraction | Simplest Fraction | Decimal | Percentage |
|---|---|---|---|---|
| 2:4 | 2/4 | 1/2 | 0.5 | 50% |
| 3:9 | 3/9 | 1/3 | 0.333333 | 33.333333% |
| 2.5:5 | 25/50 | 1/2 | 0.5 | 50% |
| 12:18 | 12/18 | 2/3 | 0.666667 | 66.666667% |
| 15:6 | 15/6 | 5/2 | 2.5 | 250% |
Basic fraction form: Fraction = First Ratio Value / Second Ratio Value
Clear decimals: Multiply both values by 10n, where n is the highest decimal count.
Reduce fully: Simplest Fraction = (Whole Numerator ÷ GCD) / (Whole Denominator ÷ GCD)
Decimal output: Decimal = Simplified Numerator ÷ Simplified Denominator
Percentage output: Percentage = Decimal × 100
Scaled ratio values: Part Value = Total Units × Part / (First + Second)
A ratio compares two values. A fraction also compares two values. That is why a ratio can be written as a fraction. This calculator helps you move from ratio form to fraction form without confusion. It is useful for school math, homework, exam practice, budgeting, recipes, and data comparison.
The calculator first places the first ratio value over the second value. If decimals appear, it clears them by multiplying both numbers by the same power of ten. That creates a whole-number fraction. Then it finds the greatest common divisor. Next, it divides both numbers by that divisor. The result is the simplest fraction.
The decimal output shows the fraction in decimal form. The percentage shows the same comparison as a percent. The reciprocal flips the fraction. The mixed number helps when the numerator is larger than the denominator. Share values show how much each part contributes to the total ratio.
If you know a total amount, this tool can split that total by the ratio. For example, a ratio of 2:3 with a total of 100 gives 40 and 60. This is useful in finance, classroom grouping, manufacturing, resource allocation, and probability models.
Many learners need more than a final answer. They need to see each reduction stage. The step section explains the fraction setup, decimal clearing, greatest common divisor, and final simplification. That makes the calculator a learning tool, not only a quick solver.
Enter exact values when possible. Use decimals only when needed. Avoid leaving the second ratio value as zero. Review the simplified ratio and the simplest fraction together. Both should express the same comparison. Export the result if you want to save a math example or share it later.
It means writing the first ratio term over the second term. For example, 3:5 becomes 3/5. Both forms show the same comparison.
The calculator finds the greatest common divisor of both whole-number terms. Then it divides the numerator and denominator by that value.
Yes. The tool clears decimals first. It multiplies both terms by the same scale factor before reducing the fraction.
A fraction cannot have a denominator of zero. That would make the result undefined, so the calculator blocks that input.
The simplified ratio uses colon form, like 2:3. The simplest fraction uses slash form, like 2/3. They represent the same comparison.
Scaled values split a total amount by the ratio. If the total is 60 and the ratio is 1:2, the parts become 20 and 40.
Yes. Turn on step display to see the fraction setup, decimal clearing, divisor, and final reduced answer in order.
Yes. After calculation, you can download the result as a CSV file or a PDF file from the result section.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.