Avella Tuta DP, Salazar Pérez FA, Miguez García JE. Resolution of mathematical problems with fractions focused on the school context. rev.educien [Internet]. 2019 Feb. 3 [cited 2024 Aug. 16];(20):147-6. Available from: https://revistas.uptc.edu.co/index.php/educacion_y_ciencia/article/view/8913