Question

What is the opposite and reciprocal of -4/2?

Answer 1

The opposite is what adds up to `0`
The reciprocal is what multiplies to `1`

Explanation:

Opposite : reverse the sign, because `x` added to `-x` always adds up to `0`

Reciprocal : make the denominator and numerator change places, because `x/y*y/x` multiplies to `1`

In your case they are `4//2and -2//4` respectively.
(You might have written the original number as `-2`
The answers would then have been `2and-1//2`)