Question

5/12 mais 3/12 mais 7/12 vaidar

Answer 1

5/12 + 3/12 + 7/12 = 15/12

Answer 2

.
$\frac{5}{12} + \frac{3}{12} + \frac{7}{12} = \frac{5+3+7}{12} = \frac{15}{12} = \frac{5}{4}$