Fractional values are expressed as sums of unit fractions. Unit fractions are separated by whitespace, and give the denominator of the fraction using the same system used to write integer values, except that the two special abbreviations for 1/2 ( 𐅵 U 10175) and 2/3 (𐅷 U 10177) may used. Unit fractions are listed from left to right in order from largest to smallest value. The entire fractional component of a MilesianString is marked by a double quote character, optionally followed by non-signficant white space.
The fraction one-third is written γ". Its fractional component is γ", and it is syntactically valid.
The fraction one-half can be written with the abbreviation 𐅵". Its fractional component is 𐅵", syntactically valid.
A value corresponding to 7/12 is expressed as 1/2 + 1/12.
As a MilesianString, this can be written as β ιβ". Its fractional component is β ιβ", which parses as syntactically valid.
Alternatively, the same value can be written with the abbreviation for 1/2 as 𐅵 ιβ". Its fractional part is 𐅵 ιβ", which parses as syntactically valid.
TO BE ADDED.
The Unicode code points for the abbreviated fractions one-half 𐅵 and 𐅷 are not yet covered in the Epidoc transcoder. We need to define a mapping of these characters to an ASCII-only representation.