u/Accomplished-Ease234

ɑ = 1/12
d = 2/12 (1/6)
q = 3/12 (1/4)
s = 6/12 (1/2)
l = 12/12 (1/1) or just 𝚰

qa = 4/12 (1/3)
qd = 5/12
sa = 7/12
sd = 8/12 (2/3)
sq = 9/12 (3/4)
sqa = 10/12 (5/6)
sqd = 11/12

The l symbol is mostly synonymous with the I symbol, but it is used specifically to indicate a full dozen or an excess of a dozen:
la = 13/12
ld = 14/12
lq = 15/12
...