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Ratio Divider Calculator

Split a total amount into proportional parts based on a given ratio. This calculator is perfect for sharing costs, mixing ingredients, or dividing assets fairly for school or personal use.

Enter the total quantity you want to split (e.g., 150, 25.50).

Enter the ratio parts, separated by commas or colons (e.g., 2,3,5 or 1:2:3).

How it works

Split a total amount into proportional parts based on a given ratio. This calculator is perfect for sharing costs, mixing ingredients, or dividing assets fairly for school or personal use.


The Formula
1. Sum all parts of the ratio. 2. Divide the total amount by this sum to find the value of one 'unit'. 3. Multiply each part of the ratio by the unit value to get the individual amounts.

Worked Example
  1. Example: Dividing £150 in a 2:3:5 Ratio

    Imagine you need to share £150 among three friends in the ratio 2:3:5. First, sum the ratio parts: 2 + 3 + 5 = 10. Next, divide the total amount by this sum: £150 / 10 = £15. This is the value of one 'unit'. Finally, multiply each ratio part by £15: Friend 1 gets 2 * £15 = £30, Friend 2 gets 3 * £15 = £45, and Friend 3 gets 5 * £15 = £75. The calculator will show these results.


Tips, Assumptions & Limitations
  • Ensure your ratio parts are positive numbers.
  • You can use whole numbers or decimals for both the total amount and ratio parts.
  • The calculator handles any number of ratio parts, separated by commas or colons.
FAQ

Ratio division is the process of splitting a total quantity into parts that are proportional to a given ratio. For example, if you divide 100 in a 1:3 ratio, you get 25 and 75.

This calculator is useful in many real-world situations, such as splitting a bill among friends, dividing inheritance, mixing ingredients in a recipe, or allocating resources in a project based on specific proportions.

Yes, you can use decimals for both the total amount and the individual ratio parts. The calculator will handle the calculations accurately.

If the sum of your ratio parts is zero, the calculator cannot perform the division and will show an error. Ensure at least one ratio part is a positive number.

Companion article

Ratio Divider Calculator: How to Split Amounts Fairly

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