$L.C.M.$ and $H.C.F.$ of two numbers $x$ and $y$ are $315$ and $3,$ respectively. If $x+y=36,$ the value of $\frac{1}{x}+\frac{1}{y}$ is

  • A
    $1$
  • B
    $\frac{1}{6}$
  • C
    $\frac{12}{315}$
  • D
    $\frac{4}{35}$

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