3 files changed, 7 insertions, 1 deletions
diff --git a/chars.c b/chars.c
index dcfe2615..b1e7f487 100644
--- a/chars.c
+++ b/chars.c
@@ -37,7 +37,7 @@ struct	ln {
 	int		  unicode;
 };
 
-#define	LINES_MAX	  325
+#define	LINES_MAX	  328
 
 #define CHAR(in, ch, code) \
 	{ NULL, (in), (ch), (code) },
diff --git a/chars.in b/chars.in
index 6904c971..c627b32d 100644
--- a/chars.in
+++ b/chars.in
@@ -312,6 +312,9 @@ CHAR("Im",			"I",		8465)
 CHAR("Re",			"R",		8476)
 CHAR("pd",			"a",		8706)
 CHAR("-h",			"/h",		8463)
+CHAR("12",			"1/2",		189)
+CHAR("14",			"1/4",		188)
+CHAR("34",			"3/4",		190)
 
 /* Ligatures. */
 CHAR("ff",			"ff",		64256)
diff --git a/mandoc_char.7 b/mandoc_char.7
index f61d3a07..4f8eab04 100644
--- a/mandoc_char.7
+++ b/mandoc_char.7
@@ -288,6 +288,9 @@ Mathematical:
 .It \e(Re    Ta \(Re        Ta real
 .It \e(pd    Ta \(pd        Ta partial differential
 .It \e(-h    Ta \(-h        Ta Planck constant over 2\(*p
+.It \e[12]   Ta \[12]       Ta one-half
+.It \e[14]   Ta \[14]       Ta one-fourth
+.It \e[34]   Ta \[34]       Ta three-fourths
 .El
 .Pp
 Ligatures: