What is the Difference Between Proper, Improper and Mixed Fractions

In this video named "What is theDifference between Proper, Improper and Mixed Fractions?", we have used One Group of Objects (where each Object is used as One Unit) and used One Object (where each part of this Object is used as One Unit) for understanding Proper Fraction, Improper Fraction and Mixed Fraction. And we have explain that why some time Denominator become grater then Numerator and some time Numerator become grater then Denominator. And why the type of fraction has changed by grater/smaller Denominator.