Rational number concept or the fraction represent concept which is not easy to understood by elementary school student because he level of reasoning is stil relatively concrete thinking. Therefore in learning the ration number it is much better teachers use appropriate media to be able to draw the attention of the student. The professional teacher in the process of learning and teraching this discipline must patient serius accurate and attention towards the following fraction type comparing fraction and way of operating rational number which needs the mastery of the best concept.