Question

Convert the repeating decimal to a fraction. 0.18 =

Answer 1

If you type 1/0.1818181 on your calculator, you get (rounded) 5.5.
And 1/5.5 if you multiply numerator and denominator by 2, becomes: 2/11

Answer 2

So, 0.81 repeating would look like this:
0.18181818...= 2 /11

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