Answers

2014-04-07T19:51:39+05:30
This is short cut method
15.71212...
=15712-15/990
=1557/990
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2014-04-08T07:57:25+05:30
15.71212....=x
157.1212...=10x-----(1)
15712.1212...=1000x-----(2)
(2)-(1)
15555=990x
⇒x=15555/990

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