MCQ
The simplest of $1.\bar6$ is:
  • A
    $\frac{8}{5}$
  • $\frac{5}{3}$
  • C
    $\frac{833}{500}$
  • D
    None of these.

Answer

Correct option: B.
$\frac{5}{3}$
Let $x = 1.666... ---(i)$Multiply eq. (i) by 10, we get
$10x = 16.666... ----(ii)$
Subtract eq$(i)$ from $(ii)$ we get
$9x = 15$
$\text{x}=\frac{5}{3}$

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