What is a multiplicative inverse? If you can answer that question, what is a Multiplicative Identity? I was so mad that I couldn't do this myself for my math class. *PLEASE HELP, I'M DESPRATE!* Also, I wanted to know what the difference between the two is, thank y'all so much!

Guest Oct 12, 2021

#1**0 **

The multiplicative identity is the number 1 because if you multiply any number by 1, you will get, as a result, the number that you started with. (You will have an answer that is *identical* to the number that you started with.)

A multiplicative inverse is the number that, when multiplied to the original number, will have a result of 1.

Thus, the multiplicative inverse of 2 is 1/2; the multiplicative inverse of 3 is 1/3;

the multiplicative inverse of 23 is 1/23; the multiplicative inverse of 3/4 is 4/3;

the multiplicative inverse of -1/3 is -3; etc.

The number zero has no multiplicative inverse; for all other numbers, the multiplicative inverse of x is 1/x.

geno3141 Oct 13, 2021