How is -5 and 1/5 multiplicative inverses
-5 and 1/5 aren't multiplicative inverses (because their product is -1 not 1):
5 and 1/5 are multiplicative inverses (because their product is 1):
-5 and -1/5 are multiplicative inverses (because their product is 1).
How is -5 and 1/5 multiplicative inverses.
multiplicative inverse =reciprocal. When you say "how", you mean "what is the reciprocal of -5 and 1/5??". If yes, the reciprocal of -5 =1/-5 =-1/5. And the reciprocal of 1/5 =5/1 =5.
