2 files changed, 21 insertions, 22 deletions
diff --git a/activesupport/lib/active_support/core_ext/numeric/conversions.rb b/activesupport/lib/active_support/core_ext/numeric/conversions.rb
index 946f8ddeab..4f6621693e 100644
--- a/activesupport/lib/active_support/core_ext/numeric/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/numeric/conversions.rb
@@ -99,31 +99,30 @@ module ActiveSupport::NumericWithFormat
   #  1234567.to_s(:human, precision: 1,
   #                   separator: ',',
   #                   significant: false)                   # => "1,2 Million"
-  def to_s(*args)
-    format, options = args
-    options ||= {}
-
+  def to_s(format = nil, options = nil)
     case format
+    when nil
+      super()
+    when Integer, String
+      super(format)
     when :phone
-      return ActiveSupport::NumberHelper.number_to_phone(self, options)
+      return ActiveSupport::NumberHelper.number_to_phone(self, options || {})
     when :currency
-      return ActiveSupport::NumberHelper.number_to_currency(self, options)
+      return ActiveSupport::NumberHelper.number_to_currency(self, options || {})
     when :percentage
-      return ActiveSupport::NumberHelper.number_to_percentage(self, options)
+      return ActiveSupport::NumberHelper.number_to_percentage(self, options || {})
     when :delimited
-      return ActiveSupport::NumberHelper.number_to_delimited(self, options)
+      return ActiveSupport::NumberHelper.number_to_delimited(self, options || {})
     when :rounded
-      return ActiveSupport::NumberHelper.number_to_rounded(self, options)
+      return ActiveSupport::NumberHelper.number_to_rounded(self, options || {})
     when :human
-      return ActiveSupport::NumberHelper.number_to_human(self, options)
+      return ActiveSupport::NumberHelper.number_to_human(self, options || {})
     when :human_size
-      return ActiveSupport::NumberHelper.number_to_human_size(self, options)
+      return ActiveSupport::NumberHelper.number_to_human_size(self, options || {})
+    when Symbol
+      super()
     else
-      if is_a?(Float) || format.is_a?(Symbol)
-        super()
-      else
-        super
-      end
+      super(format)
     end
   end
 end
diff --git a/activesupport/lib/active_support/core_ext/numeric/time.rb b/activesupport/lib/active_support/core_ext/numeric/time.rb
index 809dfd4e07..2e6c70d418 100644
--- a/activesupport/lib/active_support/core_ext/numeric/time.rb
+++ b/activesupport/lib/active_support/core_ext/numeric/time.rb
@@ -19,7 +19,7 @@ class Numeric
   #   # equivalent to Time.current.advance(months: 4, years: 5)
   #   (4.months + 5.years).from_now
   def seconds
-    ActiveSupport::Duration.new(self, [[:seconds, self]])
+    ActiveSupport::Duration.seconds(self)
   end
   alias :second :seconds
 
@@ -27,7 +27,7 @@ class Numeric
   #
   #   2.minutes # => 2 minutes
   def minutes
-    ActiveSupport::Duration.new(self * 60, [[:minutes, self]])
+    ActiveSupport::Duration.minutes(self)
   end
   alias :minute :minutes
 
@@ -35,7 +35,7 @@ class Numeric
   #
   #   2.hours # => 2 hours
   def hours
-    ActiveSupport::Duration.new(self * 3600, [[:hours, self]])
+    ActiveSupport::Duration.hours(self)
   end
   alias :hour :hours
 
@@ -43,7 +43,7 @@ class Numeric
   #
   #   2.days # => 2 days
   def days
-    ActiveSupport::Duration.new(self * 24.hours, [[:days, self]])
+    ActiveSupport::Duration.days(self)
   end
   alias :day :days
 
@@ -51,7 +51,7 @@ class Numeric
   #
   #   2.weeks # => 2 weeks
   def weeks
-    ActiveSupport::Duration.new(self * 7.days, [[:weeks, self]])
+    ActiveSupport::Duration.weeks(self)
   end
   alias :week :weeks
 
@@ -59,7 +59,7 @@ class Numeric
   #
   #   2.fortnights # => 4 weeks
   def fortnights
-    ActiveSupport::Duration.new(self * 2.weeks, [[:weeks, self * 2]])
+    ActiveSupport::Duration.weeks(self * 2)
   end
   alias :fortnight :fortnights