conversations.from: human
conversations.value: Can you give me some step-by-step instructions for this math problem: A rectangle has a length of 40 meters and a width of 20 meters. A similar smaller rectangle has half the length and width of the big rectangle. What's the area of the smaller rectangle?
conversations.from: assistant
conversations.value: The length of the smaller rectangle is 1/2*40 = 20 meters.
  The width of the smaller rectangle is 1/2*20 = 10 meters.
  Since the area of a rectangle is found by multiplying the length times the width, the total area of the smaller rectangle is 20*10 = 200 meters square.