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Harahap M. Improving Mathematics Learning Outcomes in Adding Fractions Material Through an Active Student Learning Model in Class VII SMP Negeri 1 Batang Onang Batang Onang District 2022 – 2023 Academic Year. EJR [Internet]. 2023Mar.31 [cited 2025Aug.2];2(2):59-65. Available from: https://jurnal.larisma.or.id/index.php/EJR/article/view/488