Respuesta:
[tex] \frac{1}{3} \div \frac{2}{5} + \frac{2}{5} - \frac{3}{12} + 4 = \\ \frac{1}{3} \times \frac{5}{2} + \frac{2}{5} - \frac{3}{12} + 4 = \\ \frac{5}{6} + \frac{2}{5} - \frac{3}{12} + 4 = \\ \frac{50}{60} + \frac{24}{60} - \frac{15}{60} + \frac{240}{60} = \\ \frac{299}{60} = [/tex]
