How do you evaluate #\frac { 1} { 2} \sum _ { k = 1} ^ { 3} \frac { 2} { k }#? Precalculus Series Summation Notation 1 Answer Steve M · George C. May 8, 2017 Answer: # 1/2 \ sum_(k=1)^3 \ 2/k = 11/6 # Explanation: With a small number of terms we can just write out those terms and evaluate the sum: Thus # 1/2 \ sum_(k=1)^3 \ 2/k =1/2{2/1+2/2+2/3 } # # " " =1/2{2+1+2/3 } # # " " =1/2{11/3 } # # " " =11/6 # Related questions What is summation notation? What are some examples of summation notation? What is a sample summation notation problem? How do I use summation notation on a calculator? How do I use summation notation with infinity? How do I use summation notation to write the series 2 + 4 + 6 +... for 10 terms? How do I use summation notation to write the series 2.2 + 8.8? How do I use summation notation to write the series 2.2 + 6.6? How do I use summation notation to write the series 2.2 + 6.6 + 11? What is the difference between a sequence and a series in math? See all questions in Summation Notation Impact of this question 264 views around the world You can reuse this answer Creative Commons License