#13730 grammar fix
diff --git a/Doc/library/decimal.rst b/Doc/library/decimal.rst
index d6cd504..ef8b43f 100644
--- a/Doc/library/decimal.rst
+++ b/Doc/library/decimal.rst
@@ -29,7 +29,7 @@
people learn at school." -- excerpt from the decimal arithmetic specification.
* Decimal numbers can be represented exactly. In contrast, numbers like
- :const:`1.1` and :const:`2.2` do not have an exact representations in binary
+ :const:`1.1` and :const:`2.2` do not have exact representations in binary
floating point. End users typically would not expect ``1.1 + 2.2`` to display
as :const:`3.3000000000000003` as it does with binary floating point.