conversations.from: human
conversations.value: Emmett does 12 jumping jacks, 8 pushups, and 20 situps. What percentage of his exercises were pushups?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: First find the total number of exercises Emmett does: 12 jumping jacks + 8 pushups + 20 situps = 40 exercises
  Then divide the number of pushups by the total number of exercises and multiply by 100% to express the answer as a percentage: 8 pushups / 40 exercises * 100% = 20%