Analysis of Junior High School Students’ Multiple Mathematical Representation (MMR) Ability in Solving Fraction Problems. Riemann: Research of Mathematics and Mathematics Education, [S. l.], v. 8, n. 1, p. 429–442, 2026. DOI: 10.38114/riemann.v8i1.187. Disponível em: https://journal.sanagustin.ac.id/index.php/reimann/article/view/187.. Acesso em: 12 may. 2026.