Answers

2014-01-15T19:38:01+05:30
The number added or substracted by which  given no becomes 0 
  additive inverse of 5/9=minus5/9
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2014-01-15T20:12:54+05:30
Additive inverse of 5/9 is -5/9 as 5/9 + (-5/9)= 0
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