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2014-04-26T10:57:27+03:00
0,(3)=3/9=1/3
1/3 supra x= 1/3 *1/x= 1/3x
0,(2)=2/9

1/3/x=2/ 2/9
1/3 * 1/x= 2/1  *9/2
1/x= 9/1/3
1/x=9 *  1/3
1/x= 3
3x=1
x=1/3