is there an easy way to tackle this problem?1/2-2/3+3/4-4/5+5/6-6/7+7/8-8/9+9/10-10/11

Question

This is an extra credit question for a 7th grader.  I know how to do the process but was wondering if there is trick or shortcut I am not seeing.

Answer 1

I think that your problem is intended to be computed by using LEAST COMMON DENOMINATOR. Expect a negative fractional result.