SAT Math Practice Exam

Category - Mathematics - Hard

If the number 1/6, 2/9, 1/18, 1/12, and 2/3 were ordered from greatest to least, the middle number of the resulting sequence would be
  1. 1/6
  2. 2/9
  3. 1/18
  4. 1/12
Explanation
Answer: A- Before comparing fractions, their denominators should be made same. The denominators 6, 9, 18, 12 and 3 have LCM = 36. We convert the fractions all with 36 as denominator.
6/36, 8/36, 2/36, 3/36, 24/36
Now arrange the series from greatest to lowest value of their numerators:
24/36, 8/36, 6/36, 3/36, 2/36
The middle number of the resulting sequence is 6/36 = 1/6
Key takeaway: Before comparing fractions, their denominators should be made same. Then arrange the series in ascending order as per the numerators.
Was this helpful? Upvote!
Login to contribute your own answer or details

Top questions

Related questions

Most popular on PracticeQuiz