Respuesta :

Antonio2525

[tex] \frac{0.21212121...}{1} [/tex]
Geophilip

Answer:

X = 20/99

Explanation:

Let X = 0.21212121

Multiple both sides by 100

100X = 21.212121

Substrate X from both sides

100X - X = 21.212121 - 0.21212121

99X = 21

X = 21/99

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