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Best Answer

Let P = 0,212121,,,,

Hence 100P = 21.212121....

Subtract

99P = 21 (NB The repeating decimals subtract to zero.

P = 21/99

Cancel down by '3'

P = 7/33 The answer!!!!

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lenpollock

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5mo ago
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11y ago
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Q: What is the fraction for .21 repeating?
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