Vulgar Fraction Two Thirds ⅔

The Vulgar Fraction Two Thirds character (⅔) is a standard HTML entity defined in the HTML specification. In HTML source code, it can be written using the named entity reference ⅔, the decimal numeric character reference ⅔, or the hexadecimal numeric reference ⅔. The character is assigned Unicode code point U+2154 in the Universal Character Set.

The two-thirds fraction is a precomposed Unicode character displaying ⅔ as a single glyph. It complements the one-third fraction and appears in recipes, probability discussions, and various measurement contexts. The HTML5 specification includes the named entity ⅔ for this character.

Mathematical HTML entities enable web authors to display proper mathematical notation without relying on images or specialized rendering libraries like MathJax or KaTeX. While complex equations and multi-line formulas may still benefit from dedicated math typesetting tools, individual symbols expressed as HTML entities render quickly, remain accessible to screen readers, and can be styled with CSS just like regular text content.

When deciding how to encode the Vulgar Fraction Two Thirds character in your HTML documents, the named entity ⅔ is generally the most readable choice for developers reviewing or maintaining source code. The decimal form ⅔ and hexadecimal form ⅔ are equally valid alternatives that work in contexts where named entities may not be supported, or when generating HTML output programmatically from server-side code. All three representations produce identical visual output in every modern web browser.

Use the two-thirds fraction in cooking recipes (⅔ cup), mathematical explanations involving thirds, and contexts where the fraction needs to appear inline with text. Using the precomposed character rather than 2/3 provides a cleaner, more professional appearance in typeset content.