diff --git a/README.md b/README.md
index 4ce8984..1411e25 100644
--- a/README.md
+++ b/README.md
@@ -253,7 +253,7 @@ In the `FRACTIO` module, `.` represents 1/12, `:` represents 1/6 and `S` represe
 
 Fractions can be written as an extension of integers. So 3.5 would be "`IIIS`".
 
-The symbol `|` can be used to denote that the following fraction symbols are 1 "level down" in base 12. So after the first `|`, the fraction symbols denote 144ths instead of 12ths. So 7 and 100/144 would be "`VIIS:|::`", as "7 + 100/144" is also "7+9/12+4/144".
+The symbol `|` can be used to denote that the following fraction symbols are 1 "level down" in base 12. So after the first `|`, the fraction symbols denote 144ths instead of 12ths. So 7 and 100/144 would be "`VIIS:|::`", as "7 + 100/144" is also "7+8/12+4/144".
 
 A single "set" of fraction symbols can only represent up to 11/12, as 12/12 can be written as 1.