Question

How do you write 3.212121.... as a fraction and why is it a rational number?

Answer 1

Answer:

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Step-by-step explanation:

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sorry it's fault of my laptop

Answer 2

Step-by-step explanation:

3.212121....can be written as rational no.

Let 3.21 be x

therefore 100x=321.21

100x-x=321.21-3.21

99x=318

x=318/99

x=106/33