multiplicative inverse

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multiplicative inverse

n.
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Noun1.multiplicative inverse - (mathematics) one of a pair of numbers whose product is 1: the reciprocal of 2/3 is 3/2; the multiplicative inverse of 7 is 1/7
math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
inverse, opposite - something inverted in sequence or character or effect; "when the direct approach failed he tried the inverse"