diff --git a/newRPG/Module_DICE.rb b/newRPG/Module_DICE.rb
index 5274981..a6c16b1 100755
--- a/newRPG/Module_DICE.rb
+++ b/newRPG/Module_DICE.rb
@@ -15,7 +15,7 @@
     else
       dice_data=data1.split("D")
       if not dice_data.length == 2
-        p "Dが2つ以上記入されています"
+        p "回数D面数で入力してください"
         return
       end
       2.times do |n|
@@ -31,4 +31,25 @@
     return spots
   end
 
+  def judgment(success,denominator = nil,over="OK")
+    
+    if denominator==nil
+    denominator = if(success.to_s.include?("."))
+                    10**success.to_s.length-1
+                  else
+                    10**success.to_s.length
+                  end
+    end
+    
+    p denominator
+
+    result = rand(1..denominator)
+    p result
+    if success.to_s.delete(".").to_i > denominator && over!="OK"
+      puts "分子が分母を上回っています"
+    end
+    return result <= success.to_s.delete(".").to_i
+    
+  end
+
 end