To find out how many lengths of the swimming pool Jaimie swims per minute, we can use the information given.
Jaimie swims \( \frac{12}{14} \) lengths of the swimming pool in \( \frac{14}{14} \) minutes (which is equal to 1 minute).
To calculate the number of lengths per minute, we can simplify:
\[ \text{Lengths per minute} = \frac{12}{14} \times \frac{1}{\frac{14}{14}} = \frac{12}{14} \times \frac{14}{14} = \frac{12}{1} = 12 \]
Thus, Jaimie swims 12 lengths of the swimming pool per minute.