Сравните дроби \(\displaystyle \frac{12}{21}\) и \(\displaystyle \frac{13}{27}\) с \(\displaystyle \frac{1}{2}\)

[ ]\(\displaystyle <\frac{1}{2}<\)[ ]

и сравните между собой

\(\displaystyle \frac{12}{21}\)[?|<|>]\(\displaystyle \frac{13}{27}\)