U+2155 "⅕" Vulgar Fraction One Fifth Unicode Character

Unicode Version 17.0

⅕

U+2155 "⅕" Vulgar Fraction One Fifth is a precomposed typographic symbol representing the fraction one fifth, used primarily to display the fraction cleanly in digital text without requiring inline formatting or separate numeral and slash characters. This character is part of the Number Forms block in Unicode, designed to provide standard visual representations for common fractions in documents, tables, and user interfaces. Its inclusion ensures consistent rendering across platforms and fonts, making it useful for recipes, measurements, or mathematical contexts where space and readability are important. The vulgar fraction character encodes the concept of a single part of a five part whole, with ratios preserved as a single code point rather than as separate digits.

General Properties

Code Point	U+2155
Version Added	1.1
Name	Vulgar Fraction One Fifth
Unicode 1.0 Name	Fraction One Fifth
Block	Number Forms
General Category	Other Number
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral
Decomposition Type	Fraction
Decomposition Mapping	"1" U+0031 Digit One "⁄" U+2044 Fraction Slash "5" U+0035 Digit Five

Encodings

HTML Decimal Encoding	⅕
HTML Hex Encoding	⅕
UTF-8 Encoding	0xE2 0x85 0x95
UTF-16 Encoding	0x2155
UTF-32 Encoding	0x00002155
C/C++/Java Escape	\u2155

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	Numeric
Numeric Value	1/5
Line Break	Ambiguous (Alphabetic or Ideographic)
Changes When NFKC Casefolded	Yes
NFKC Casefold	"1" U+0031 Digit One "⁄" U+2044 Fraction Slash "5" U+0035 Digit Five
NFKC Simple Casefold	"1" U+0031 Digit One "⁄" 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