HTML Entity for Fraction 1 By (⅟)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+215F

What You'll Learn

How to display the Fraction 1 By symbol (⅟) in HTML using hexadecimal, decimal, and CSS escape methods. This character is U+215F (FRACTION NUMERATOR ONE) in the Number Forms block (U+2150–U+218F)—the fraction numerator 1 used in vulgar fractions such as ⅟2 (one half) or ⅟n.

Render it with ⅟, ⅟, or CSS escape \215F. There is no named HTML entity. Do not confuse ⅟ with precomposed one half (½, ½), zero thirds (↉, U+2189), or plain text 1/2.

⚡ Quick Reference — Fraction 1 By

Unicode U+215F

Number Forms

Hex Code ⅟

Hexadecimal reference

HTML Code ⅟

Decimal reference

Named Entity

Use numeric codes only

Reference Table
Name           Value
────────────   ──────────
Unicode        U+215F
Hex code       ⅟
HTML code      ⅟
Named entity   (none)
CSS code       \215F
Meaning        Fraction numerator one (1/n)
Related        U+2189 = Zero thirds (↉); U+00BD = One half (½)
1

Complete HTML Example

This example demonstrates the Fraction 1 By (⅟) using hexadecimal code, decimal HTML code, and a CSS content escape. There is no named HTML entity:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\215F";
  }
 </style>
</head>
<body>
<p>Fraction 1 By using Hexadecimal: &#x215F;</p>
<p>Fraction 1 By using HTML Code: &#8543;</p>
<p id="point">Fraction 1 By using CSS Entity: </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The Fraction 1 By is widely supported in modern browsers with a suitable font:

Chrome 1+
Firefox 1+
Safari 1+
Edge 12+
Opera 4+
Android 4.4+
iOS Safari 1+

👀 Live Preview

See the fraction numerator one (⅟) in math and compared with related fraction glyphs:

Vulgar fractions ⅟2 (half)   ⅟4 (quarter)
vs precomposed ⅟2   vs   ½ (&frac12;)
Related glyphs ↉ zero thirds   ⅓ one third
Large glyph
Numeric refs &#x215F; &#8543; \215F

🧠 How It Works

1

Hexadecimal Code

&#x215F; uses the Unicode hexadecimal value 215F to display the Fraction 1 By. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#8543; uses the decimal Unicode value 8543 to display the same character.

HTML markup
3

CSS Entity

\215F is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All three methods produce the glyph: . Unicode U+215F is in Number Forms. No named HTML entity—use numeric codes in markup.

Use Cases

The Fraction 1 By (⅟) is commonly used in:

📐 Mathematical notation

Equations and vulgar fractions using ⅟ as numerator (e.g. ⅟2, ⅟n).

📚 Educational content

Textbooks, tutorials, and learning materials for fractions and number theory.

📊 Data display

Statistics, ratios, and data expressed with vulgar fractions (⅟2, ⅟n).

📝 Recipes & measurements

Content that uses vulgar fractions for precise typographic display.

💻 Math tools

Calculators and web apps that display fraction results.

🔤 Symbol references

Unicode tables and Number Forms glossaries.

💡 Best Practices

Do

  • Add aria-label="fraction numerator one" when the symbol carries meaning
  • Use math-friendly fonts (Cambria Math, STIX Two Math) for clear fractions
  • Use the CSS escape in ::before / ::after for repeated markers
  • Keep hex or decimal encoding consistent within a project
  • Serve pages with UTF-8 (<meta charset="utf-8">)

Don’t

  • Confuse ⅟ (numerator 1) with ½ (half) or ↉ (zero thirds)
  • Expect a named entity—none exists for U+215F
  • Put CSS escape \215F in HTML text nodes
  • Use ⅟ alone when a precomposed fraction like ½ or plain 1/2 is clearer
  • Skip cross-browser checks for rare punctuation glyphs

Key Takeaways

1

Two HTML numeric references plus CSS render ⅟

&#x215F; &#8543;
2

For CSS stylesheets, use the escape in the content property

\215F
3

Unicode U+215F — FRACTION NUMERATOR ONE

4

Number Forms block (U+2150–U+218F)

5

Three methods, no named HTML entity

❓ Frequently Asked Questions

Use &#x215F; (hex), &#8543; (decimal), or \215F in CSS content. There is no named entity.
U+215F (FRACTION NUMERATOR ONE). Number Forms block (U+2150–U+218F). Hex 215F, decimal 8543. Used as numerator in vulgar fractions like ⅟2 (one half).
In mathematical notation and fractions (e.g. ⅟2, ⅟4), educational content, recipes and measurements, data display, and any content that requires the fraction numerator one in typographic form.
HTML references (&#8543; or &#x215F;) go in markup. The CSS escape \215F is used in stylesheets, typically in the content property of pseudo-elements. Same visual result, different layers of the stack.
Named HTML entities cover a subset of common characters. Symbols in the Number Forms block like U+215F use numeric codes (hexadecimal or decimal). This is standard practice for such symbols in HTML.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
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I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

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