Question

1 supra 4 plus unu supra 6 plus unu supra 12

Answer 1

$\frac{1}{4} + \frac{1}{6}+ \frac{1}{12} = \frac{3}{12} + \frac{2}{12} + \frac{1}{12} = \frac{6}{12}= \frac{1}{2}=0.5$