选择题
2012 AMC 8 Problem 20: Ordering Fractions
What is the correct ordering of the three numbers 5/19, 7/21, and 9/23, in increasing order?
A.
9/23 < 7/21 < 5/19
B.
5/19 < 7/21 < 9/23
C.
9/23 < 5/19 < 7/21
D.
5/19 < 9/23 < 7/21
E.
7/21 < 5/19 < 9/23