Introduction
The additive inverse of a number is the number that, when added to the original number, results in a sum of zero. In other words, it is the opposite of the number.

Calculating the Additive Inverse of -7/19
To calculate the additive inverse of -7/19, we need to find the number that, when added to -7/19, results in a sum of zero. We can do this by adding the opposite of -7/19, which is 7/19.

Using the Formula
We can also use the formula for the additive inverse, which is:

a + (-a) = 0

where "a" is the original number and "-a" is its additive inverse.

Substituting the Values
Substituting -7/19 for "a", we get:

-7/19 + (-(-7/19)) = 0

Simplifying the double negative, we get:

-7/19 + 7/19 = 0

Therefore, the additive inverse of -7/19 is 7/19.

Conclusion
The additive inverse of a number is the opposite of that number, and can be found by adding the opposite of the original number to it. In the case of -7/19, its additive inverse is 7/19.

Additive inverse of -7/19 is 7/19 because (-7/19)-(7/19)=0