GAUSS8 2011 Problem 4

The largest number in the list \{\frac{3}{10},\frac{9}{20},\frac{12}{25},\frac{27}{50},\frac{49}{100}\} is

Answer Choices
A. \frac{3}{10}
B. \frac{9}{20}
C. \frac{12}{25}
D. \frac{27}{50}
E. \frac{49}{100}