conversations.from: human
conversations.value: I need a clearer understanding of how to solve: Jim is wondering how many miles each gallon of gas gets him. His gas tank is 12 gallons. He has 2/3 of a tank left after he drives to and from work, which is 10 miles away from his house. How many miles per gallon does he get?
conversations.from: assistant
conversations.value: He used 1/3 of his tank because 1 - (2/3) = 1/3
  He used 4 gallons of gas because 12 x (1/3) = 4
  He drove 20 miles because 2 x 10 = 20
  He gets 5 miles per gallon because 20 / 4 = 5