conversations.from: human
conversations.value: Break down this math problem: Sarah went to buy books from the store and spent $300 on the books. If each book was $15 and she gave an equal number of books to her 4 kids, how many books did each child get?
conversations.from: assistant
conversations.value: Since she spent $300 on the books and each book's cost was $15, she bought $300/$15= 20 books.
  If Sarah gave an equal number of books to each of her children, each kid received 20/4 = 5 books.