Cheaper Drugs Now !!: some maths 1 = 0.999

$\begin{align} \frac{1}{9} & = 0.111\dots \\ 9 \times \frac{1}{9} & = 9 \times 0.111\dots \\ 1 & = 0.999\dots \end{align}$

$\begin{align} x &= 0.999\ldots \\ 10 x &= 9.999\ldots \\ 10 x - x &= 9.999\ldots - 0.999\ldots \\ 9 x &= 9 \\ x &= 1 \end{align}$

This has been blowing my tiny mind recently. 1 can be the same as 0.999. Bloody maths

toodle pip

Cheaper Drugs Now !!