Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE PS – 1/(1+1/3)

1/(1+1/3)…

Solution

We start by simplifying each complex fraction. Let’s multiply the left fraction by 3/3 and the right fraction by 2/2:

3/3(1/(1 + 1/3) = 3/(3 + 1) = ¾

2/2(1/(1 + ½) = 2/(2 + 1) = 2/3

Finally we have 3/4 – 2/3 = 9/12 – 8/12 = 1/12

Answer: D