conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: Hannah brought $30 to the county fair. She spent half of it on rides and another $5 on dessert. How much, in dollars, is left?
conversations.from: assistant
conversations.value: She spent $30/2=$15 on rides.
  She spent a total of $15+$5=$20 including dessert.
  She has $30-$20=$10 left.