Which of the following is between 1/9 and 5/21?	Choose one.
A) 2/13 B) 3/8 C) 1/2 D) 5/8 E) 7/9
I see this as a POE (Process of Elimination) and Ballparking (Estimation) question. Not sure if this is the most efficient, but it worked:   1) I estimate 1/9 to be ~1/10 + (approximately slightly greater than 3/4)   2) I estimate 5/21 to be ~1/5+ (approximately slightly greater than 1/5)   3) So now I'm looking for an answer choice that is .1 &lt; x &lt; .2   2/13nswer 2/13 - 2/13 ~ ..15 which is greater than .1 and less than .2
<result>A</result>
Which of the following is between 1/9 and 5/21?