Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2xX/ Esercizi: http://www.khanacademy.org/exercises?exid=ordering_numbers Traduzione in Italiano del video Mixed numbers and improper fractions http://www.youtube.com/watch?v=1xuf6ZKF1_I http://www.khanacademy.org/video/mixed-numbers-and-improper-fractions?playlist=Arithmetic Help us caption & translate this video! http://amara.org/v/B2xX/