diff --git a/Lib/numbers.py b/Lib/numbers.py
index 7fb61b0..38240d6 100644
--- a/Lib/numbers.py
+++ b/Lib/numbers.py
@@ -259,7 +259,7 @@
 Real.register(float)
 
 
-class Rational(Real, Exact):
+class Rational(Real):
     """.numerator and .denominator should be in lowest terms."""
 
     @abstractproperty