Задание
Найдите пропущенные числа:
| \(\displaystyle \frac{2}{7}+\frac{1}{2}=\) | \(\displaystyle 2 \cdot 2\) \(\displaystyle 7\,\cdot\)[ ] | \(\displaystyle +\) | \(\displaystyle 7 \cdot 1\) [ ]\(\displaystyle \cdot\,2\) | \(\displaystyle =\) | [ ] |