1.

Find the sum : 1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132 = ?

A. 7/8
B. 11/12
C. 15/16
D. 17/18
Answer» C. 15/16


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