This research is motivated by conditions in elementary schools that the material of equivalent fractions is still considered difficult to understand for students in grade IV SD/MI because students previously only studied whole numbers such as numbersnatural and whole numbers, then study equivalent fractions as numbers that are divided in different forms but have the same value. This abstract subject matter requires a media that can visualize equivalent f ractional material, including through pictures. This study aims to develop multimedia-based equivalent fraction media in mathematics learning in grade IV SD/MI. This study uses the Design Based Research (DBR) method, with steps to identify and analyze problems, product design, product validation tests, product revisions, product trials. while the data were collected through interviews, study documentation, expert validation, the product was validated by material experts and media experts. the collected data is analyzed by reducing it, then the data is presented in the form of a brief description and chart, and confirmability test (objective) is carried out to test the validity of the product. in the first trial stage, 24 students of SDN II Sukakarsa were conducted, with a response result of 96% of students agreeing to use multimedia -based fractional media.