To get to the party, Pat walked 1/6 of an hour to the bus stop. After waiting 1/12 of an…

To get to the party, Pat walked 1/6 of an hour to the bus stop. After waiting 1/12 of an hour, the bus arrived. Pat spent 2/3 of an hour on the bus. What fraction of an hour did Pat spend getting to the party? Explain how you found your answer.