ruby - how to match hash values in two different hashes -

i trying count number of matching appid in 2 separate hashes, solution feels clunky. can suggest 'ruby' way of doing this?

#hash array: {"appid"=>240, "playtime_forever"=>103} {"appid"=>2670, "playtime_forever"=>1099}  #this steam data interested  def games_in_common(friend_hash,other_hash)     arr1=array.new     arr2=array.new     other_hash.keys.each{|k|         arr1<<other_hash[k]     }         friend_hash.keys.each{|k|         arr2<<friend_hash[k]     }      return arr1 & arr2 end 

this return values common in both hashes

 def games_in_common(friend_hash,other_hash)     other_hash.values & friend_hash.values  end