Find the Decimal Expansion of a Number

Find the Decimal Expansion of a Number instantly by typing a simple fraction like 7 / 12. It shows the decimal value, and you can round, trim zeros, or even display the calculation steps right alongside.

Paste your input above or import a file below.
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Supported file types: .txt, .csv, .tsv, .md
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Options
Round output
Strip trailing zeroes
Show calculation steps

How to Use:

  1. Enter a fraction in the format numerator / denominator (like 5 / 8) into the input box.
  2. Use the toggles in the Options box to:
    • Round the result to 20 digits
    • Strip off trailing zeroes from the decimal
    • Show the division steps in the output
  3. The decimal expansion appears immediately in the output box.
  4. Use Copy Output to grab it or Export to File if you want to save it.
  5. Clear All resets everything.

You can also click “Choose File” to load a .txt or .csv file that contains a single line with a valid fraction. The result updates as soon as the file loads.

What Find the Decimal Expansion of a Number can do:

This tool divides two numbers and displays the result as a decimal with optional controls. By default, the result is rounded to 20 decimal places. If you prefer a more exact or cleaner result, toggle on trailing zero stripping. And if you’re learning or just curious, turn on the “Show steps” switch to view how the division works. The live output flashes with updates, and a character count below the output lets you see how long the result is.

You also get full file import support and standard controls to export or reset everything.

Example:

Input:

5 / 8

Settings: Round output: ON, Strip trailing zeroes: OFF, Show calculation steps: OFF

Output:0.62500000000000000000

Settings with strip + show steps:

Output:
0.625

Steps:
5 ÷ 8 = 0.625

Common Use Cases:

Use Find the Decimal Expansion of a Number to convert fractions into decimal form for math class, spreadsheets, programming, or anything else where decimals work better. You’ll get precision, customization, and the steps if you want them all in a few clicks.

Useful Tools & Suggestions:

If you’re analyzing how a number unfolds, Convert a Fraction to a Decimal is a natural place to start it gives you a clean base-10 version to expand. And if you’re working with repeating or irrational patterns, Find Entropy of a Number can add insight into how “random” that decimal really is.

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