45 | 45 divided by 5 = 9
So i think if we do the same for 70 we will get the length
70| 70 divided by 5 = 14
So the length = 14
--If I'm incorrect please correct me
We are told that a marathon is 26.2 miles long. There is a water station every 1 and 3/100 miles along the race route. We are supposed to write an expression that represents the total number of water stations.
Let x be total number of water stations.
First of all we will convert our mixed fraction into improper fraction.

The total number of water station in the marathon of 26.2 miles will be,

Therefore,
will represent the total number of water stations.
Find the LCM between the denominators.
The LCM is 36
Divide he LCM for the denominators, then multiply the result for the numerator.

You get 25/36 and you can't simplify it