When fully matured, a grape contains 80% water. After the drying process, called dehydration, the resulting raisin is only 20% water. What fraction of the original water in the grape remains after dehydration? Express your answer as a common fraction.
my answer is:1-20% =3
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80% 4
The answer is: \(1-\dfrac{20\%}{80\%}=\dfrac{3}{4}\)
