reciprocals
re-cip-ro-cals
noun
Things given or done in return; numbers whose product is one when multiplied.
"In fractions, the numerator and denominator are swapped to find reciprocals."
Thesaurus
Synonyms: mutual, correlative, bilateral, interactional, reciprocatory, reciprocative, trilateral, interactive, reciprocal cross, multiplicative inverse, inverse
Antonyms: nonreciprocal