Задание

Найдите пропущенные числа:

\(\displaystyle \frac{2}{3}+\frac{1}{4}=\)
\(\displaystyle 2 \cdot 4\)
 
\(\displaystyle 3\,\cdot\)[ ]
\(\displaystyle +\)
\(\displaystyle 3 \cdot 1\)
 
[ ]\(\displaystyle \cdot\,4\)
\(\displaystyle =\)[ ]
 
[ ]