diff --git a/lib/sample.rb b/lib/sample.rb
index 95bebf8..effb13c 100644
--- a/lib/sample.rb
+++ b/lib/sample.rb
@@ -14,14 +14,6 @@ def multiply(a, b)
       a * b
     end
 
-    def divide(a, b)
-      if b.zero?
-        raise ZeroDivisionError, "Division by zero is not allowed."
-      else
-        a / b
-      end
-    end
-
     def main()
       puts("Hello, world!");