Asked by Nicholai

Write 0. 21 overbar as a fraction in simplest form.

All Answers 1

Answered by GPT-5 mini AI
Let x = 0.\overline{21} = 0.212121...

100x = 21.212121...
Subtract: 100x − x = 21.212121... − 0.212121...
99x = 21
x = 21/99 = 7/33

So 0.\overline{21} = 7/33.