Question

what must be added to 12/13 to get result o

Answer 1

Let x should be added,



$\frac{12}{13} + x = 0 \\ \\ \\ x = - \frac{12}{13}$


Hence, -12/13 should be added.

Answer 2

Heya !!!


Let A should be added to 12/13 to get result 0.


So,


A + 12/13 = 0


A = -12/13


Hence,


-12/13 should be added to 12/13 to make it 0.
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