U+2158 "⅘" Vulgar Fraction Four Fifths Unicode Character

U+2158 "⅘" Vulgar Fraction Four Fifths is a precomposed typographic symbol representing the mathematical ratio of four out of five equal parts, encoded in the Number Forms block for convenient use in text where a standard fraction format is preferred over constructing it with separate numerals and a slash. This character maintains visual consistency with other precomposed vulgar fractions like ½ or ¾, making it ideal for recipes, measurements, or statistical data where space is limited or a polished appearance is desired. Its inclusion in Unicode ensures cross-platform compatibility, allowing the symbol to display correctly in digital documents, web pages, and software applications without requiring special formatting or font support.

General Properties

Code Point	U+2158
Version Added	1.1
Name	Vulgar Fraction Four Fifths
Unicode 1.0 Name	Fraction Four Fifths
Block	Number Forms
General Category	Other Number
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral
Decomposition Type	Fraction
Decomposition Mapping	"4" U+0034 Digit Four "⁄" U+2044 Fraction Slash "5" U+0035 Digit Five

Encodings

HTML Decimal Encoding	⅘
HTML Hex Encoding	⅘
UTF-8 Encoding	0xE2 0x85 0x98
UTF-16 Encoding	0x2158
UTF-32 Encoding	0x00002158
C/C++/Java Escape	\u2158

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	Numeric
Numeric Value	4/5
Line Break	Ambiguous (Alphabetic or Ideographic)
Changes When NFKC Casefolded	Yes
NFKC Casefold	"4" U+0034 Digit Four "⁄" U+2044 Fraction Slash "5" U+0035 Digit Five
NFKC Simple Casefold	"4" U+0034 Digit Four "⁄" U+2044 Fraction Slash "5" U+0035 Digit Five
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Vertical Orientation	Upright
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other