Andre placed 7/8 gallon of water in a pot near his wood burning stove 1/5 gallon of water evaporates each hour how many hours would it take for the entire pot of water to evaporate

So here we just want to divide 7/8 by 1/5, to find how many 1/5, or hours, fit into 7/8.  

To divide, you just want to reverse the second fraction and then multiply.

1/5 reversed is 5/1.

7/8 * 5/1 = 35/8

35/8 converted to a mixed number would be 4 3/8.

So it would take 4 3/8 hours for the entire pot of water to evaporate.