Задание
Найдите пропущенные числа:
| \(\displaystyle \frac{2}{3}-\frac{4}{7}=\) | \(\displaystyle 2 \cdot 7\) \(\displaystyle 3 \cdot\)[ ] | \(\displaystyle -\) | \(\displaystyle 3 \cdot 4\) [ ]\(\displaystyle \cdot 7\) | \(\displaystyle =\) | [ ] |