Question

$\frac{1}{2} \times \frac{1}{3} - ( - 1) \times \frac{1}{4}$
ex acesta va rog ​

Answer 1

$\frac{1}{2} \times \frac{1}{3} - ( - 1) \times \frac{1}{4} = \frac{1}{6} + 1 \times \frac{1}{4} \\ = \frac{1}{6} + \frac{1}{4} = \frac{2+ 3}{12} = \frac{5}{12}$