To find the number of laps Ronald ran in 1 minute, you can use the ratio of the laps to the time.
Since he ran 6 laps in 12 minutes, the appropriate ratio to find out how many laps he ran in 1 minute would be:
\[ \frac{6 \text{ laps}}{12 \text{ minutes}} \]
This simplifies to:
\[ \frac{6}{12} = \frac{1}{2} \]
This means Ronald ran \( \frac{1}{2} \) laps in 1 minute.
Thus, the correct answer that can be used to find the number of laps per minute is:
StartFraction 6 Over 12 EndFraction.