Задание
Найдите пропущенные числа:
| \(\displaystyle \frac{4}{7}-\frac{2}{5}=\) |
\(\displaystyle 4\cdot 5\)
\(\displaystyle 7\cdot\)[ ] | \(\displaystyle -\) |
\(\displaystyle 7\cdot 2\)
[ ]\(\displaystyle \cdot 5\) | \(\displaystyle =\) |
[ ] |