find the additive inverse of 9 upon 13

Dear Student

In mathematics, the additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite (number), sign change, and negation. For a real number, it reverses its sign: the opposite to a positive number is negative, and the opposite to a negative number is positive.

 So,Additive inverse of 9/13 will be -9/13
as 9/13+(-9/13)
     9/13-9/13
    =0 

 Regards

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Dear student,
-9/13 is your answer.
Regards.
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-9/13
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