Additive inverse of fractionis the fraction with the opposite sign, i.e. . ANSWER Additive inverse of any fraction is the fraction taken with the opposite sign, i.e. . For example, additive inverse of fraction is the fraction taken with the opposite sign, i.e. , which is equal to . Additive inverse of any real number "r" is the real number "r" taken with the opposite sign, i.e. -r.