Place in order from the fastest to the slowest

A. 12.5, 12 1/4, 12.2

Step-by-step explanation:

I'm not sure if this is correct but I got this but turning all of these into decimal form and writing them fuller which gave me 12.50, 12.25, and 12.20. I turned 1/4 into .25 because .25 is 1/4 of 100. I was taught that there is always a 0 after numbers so .5 is actually .50 and .2 is .20 which lead me to putting them in order.

So in conclusion, after putting them in decimal form, i just listed them according to fastest to slowest or greatest to least.

Maybe it’s 20 or 30 I don’t exactly know I’m not good at math