robert climbed 755 steps in 12 1/2 minutes how many steps did he average per minute
Basically, you have to do 755/12.5 That will give you your average per minute.
To find the average you divide
In this problem you are going to divide the steps by the minutes
755/12 1/2 = 60.4
So his average is 60.4 steps in one minute
In a ratio it would be written like this: 60.4 steps:1 minute
Hope I helped ;)