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2014-08-08T13:00:28+03:00
0,46(3)=  (463-46)/900=  417/900  =139/300

1,39 =1 intreg 39/100=  139/100

(1,39)⁻¹=  (139/100)⁻1=  100/139

139/300 * 100/139= 1/3