How much do you think you spent on gas when you took your last road trip?  If you live in the United States, chances are that would make you think about your car's miles per gallon.  But in other parts of the world, fuel effieciency is measured not in MPG, but in gallons per hundred miles.  In this epsiode, Pete and Noah examine this fraction-flipping phenomenon, and weigh in on which version they like better.  So hop in the car and get ready to go for a ride with the Math Club.