Question

Resolver Fracción : 1/4 + 2/7 - 1/5 =

Answer 1

Respuesta:

$\frac{1}{4} + \frac{2}{7} = \frac{7}{28} + \frac{8}{28} = \frac{15}{28} \\ \frac{15}{28 } - \frac{1}{5} = \frac{75}{140} - \frac{28}{140} = \frac{47}{140}$