# Infinite Sums

Calculus Level 4

If $$\large \frac{1}{9}+\frac{1}{18}+\frac{1}{30}+\frac{1}{45}+\frac{1}{63}+...... upto \infty =\frac{m}{n}$$ where m and n are coprime then $$m+n$$ is : This problem is a part of the sets Advanced is basic and Summing Sums

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