Задание
\(+\) \(\frac{4}{12}\) \(=\)
.
Пропиширавенство:
\(1\frac{4}{12}\) \(=\) 1 \(+\) \(\frac{4}{12}\) \(=\)
\[\frac{\square}{12}\]
\(+\) \(\frac{4}{12}\) \(=\)
\[\frac{\square}{12}\]
.