conversations.from: human
conversations.value: Archibald and his brother are playing tennis against each other. Archibald has won 12 games and his brother has won 18. What percentage of games has Archibald won?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: They have played 30 total games because 12 + 18 = 30
  The proportion won by Archibald is .4 because 12 / 30 = .4
  The percentage he has won in 40% because .4 x 100% = 40%