Jerry walked for 2/5 hours to the train station and the whole way took him 3 4/5 hours, then he had to go by bus
[tex] 3\dfrac{4}{5} -\dfrac{2}{5} [/tex] hours.
First consider fractions [tex] \dfrac{4}{5} [/tex] and [tex] \dfrac{2}{5} [/tex]. Subtracting from first fraction second fraction you have:
[tex] \dfrac{4}{5} -\dfrac{2}{5}=\dfrac{4-2}{5} =\dfrac{2}{5} [/tex].
Then add to the whole number this fraction and get
[tex] 3+\dfrac{2}{5} =3\dfrac{2}{5}[/tex] hours.
Answer: Jerry spent riding on the bus [tex] 3\dfrac{2}{5}[/tex] hours.
