Fin walks 1 mile to the grocery store. When he is half way from the store,a friend picks him up and drives him the rest of the way. What fraction of Finn's round-trip to the grocery store did he not walk
He did not walk 1/2 a mile. Because it's a round-trip, it's technically 2 miles long. so, in the end, he did not walk 1/4 of the trip. Hope this helps :)
