According to a company survey, \(\frac{1}{3}\) of the workers take public transportation to get to work, \(\frac{2}{5}\) drive cars to work, and the remainder walk to work. What fraction of the workers walk to work?
Explanation
To work with these fractions, you need to find a common denominator: \(\frac{1}{3}=\frac{5}{15}\) and \(\frac{2}{5}=\frac{6}{15}\). So if \(\frac{5}{15}\) go by public transportation, and \(\frac{6}{15}\) go by car, that adds up to \(\frac{11}{15}\) —which means that \(\frac{4}{15}\) walk to work.