diff --git a/Sources/JSONEncoding/Encoders/JSON.Literal (ext).swift b/Sources/JSONEncoding/Encoders/JSON.Literal (ext).swift
index 3cdd11f..9e3d794 100644
--- a/Sources/JSONEncoding/Encoders/JSON.Literal (ext).swift	
+++ b/Sources/JSONEncoding/Encoders/JSON.Literal (ext).swift	
@@ -28,3 +28,28 @@ extension JSON.Literal where Value:BinaryInteger
         json.utf8 += self.value.description.utf8
     }
 }
+extension JSON.Literal<Double>
+{
+    @inlinable internal static
+    func += (json:inout JSON, self:Self)
+    {
+        json.utf8 += self.value.description.utf8
+    }
+}
+extension JSON.Literal<Float>
+{
+    @inlinable internal static
+    func += (json:inout JSON, self:Self)
+    {
+        json.utf8 += self.value.description.utf8
+    }
+}
+@available(macOS 11.0, iOS 14.0, watchOS 7.0, tvOS 14.0, *)
+extension JSON.Literal<Float16>
+{
+    @inlinable internal static
+    func += (json:inout JSON, self:Self)
+    {
+        json.utf8 += self.value.description.utf8
+    }
+}
diff --git a/Sources/JSONEncoding/JSONEncodable.swift b/Sources/JSONEncoding/JSONEncodable.swift
index f656330..be47ea2 100644
--- a/Sources/JSONEncoding/JSONEncodable.swift
+++ b/Sources/JSONEncoding/JSONEncodable.swift
@@ -22,6 +22,31 @@ extension JSONEncodable where Self:BinaryInteger
         json += JSON.Literal<Self>.init(self)
     }
 }
+extension Double:JSONEncodable
+{
+    @inlinable public
+    func encode(to json:inout JSON)
+    {
+        json += JSON.Literal<Self>.init(self)
+    }
+}
+extension Float:JSONEncodable
+{
+    @inlinable public
+    func encode(to json:inout JSON)
+    {
+        json += JSON.Literal<Self>.init(self)
+    }
+}
+@available(macOS 11.0, iOS 14.0, watchOS 7.0, tvOS 14.0, *)
+extension Float16:JSONEncodable
+{
+    @inlinable public
+    func encode(to json:inout JSON)
+    {
+        json += JSON.Literal<Self>.init(self)
+    }
+}
 extension JSONEncodable where Self:RawRepresentable, RawValue:JSONEncodable
 {
     @inlinable public