It is 42 1/2 miles from eaton to baxter and 37 4/5 miles from baxter to wellington. how far is it from eaton to wellington if you go by way of baxter?

All you need to do is add the miles from Eaton to Baxter and from Baxter to Wellington to get your answer...

42 + 37 = 79 

Now we need to add the fractions 



To add we need a common denominator. 
2 and 5 can both go into 10, so that will be a our common denominator. 
Now you have... 

which is equal to 
add that to the 79 we got earlier ...

The toal and final answer is  miles !
Hope I helped and remember to vote this as the brainliest answer ! :)