Solution: We are given:
The area covered by five great lakes in United States [tex]=94,710[/tex] square miles.
The area covered by the smallest of the great lakes, Lake Ontario [tex]=7,540[/tex] square miles.
The fraction of the area of Ontario lake to the total area of all the great lakes is:
[tex]\frac{7,540}{94,710}[/tex]
[tex]\frac{754}{9471}[/tex]
Therefore, the simplest form of fraction is [tex]\frac{754}{9471}[/tex]
[tex]\frac{754}{9471}=0.08[/tex]