A school has 2009 students. The principal asks each student to submit a randomly chosen real number between 0 and 1. She then ranks these numbers in a list of decreasing order, and decides to use the 456th largest number as the fraction of students that are going to get an overall pass this year. What is the expected fraction of students that get a passing grade? Express your answer as a reduced fraction and concatenate the numerator and denominator. (For instance, if you think that the answer is \frac{1734}{274}, you would submit 1734274.)