First location the diver dove = 6 3/5 meters below sea leavel.
Second location the diver dove = 8 1/5 meters below sea leavel.
Let us convert those mixed fractions into improper fraction.
6 3/5 = 
 = 33/5.
 = 33/5.
8 1/5 = 
 = 41/5.
 = 41/5.
Now, we need to find the difference in depths of locations diver dove.
 41/5 - 33/5 = 

So, we got 8/5.
Now, we need to convert 8/5 into mixed fraction.
Dividing 8 by 5, we get quotient=1 and remainder 3.
So, the mixed fraction would be 
 .
.
Therefore, we could say  
 meter is the difference in depths of locations diver dove.
 meter is the difference in depths of locations diver dove.