Oktasari, Novika, Syahrilfuddin Syahrilfuddin, and Zetra Hainul Putra. 2022. “Fifth Grade students’ Difficulties in Solving Addition of Fractions”. Indonesian Journal of Science, Technology, Engineering, Art, and Mathematics Education 1 (1):16-26. https://doi.org/10.31258/ijsteame.1.1.16-26.