Robert climbed 775775775 steps in 12/dfrac1212 2 1 12, start fraction, 1, divided by, 2, end fraction minutes. How many steps did he average per minute?

Since the question requires you to give the answer in terms of steps/minute, the first step would be to convert hours to minutes:

12.5 hours = 750 minutes

Next, if he took 775 steps in 750 minutes, how many would he take in 1 minute?

This requires you to set up the question as a proportion:

(775 steps / 750 minutes) = (x steps/1 minute)

(1 * 775) / 750 = 31/30 = 1.033

he took ~1 step per minute