How did Kakashi get shinnagan?

Answer 1

Kakashi holds the Sharingan in his right eye. Before Obito died, a ninja had made Kakashi loose his right eye by thrashing it with a weapon, then when Obito is trapped under a rock. Obito forgot to give Kakashi a present, so.... he gave him his Sharingan eye! ~Rena.R

then he gets his mangkoue sharigan from all his closet friends who have all died

by SaSuke_P0weRs

Answer 2

Kakashi gets his Sharingan from Uchiha Obito. Just before Obito dies he asks Rin the girl in kakashi's team to transplant his eye into kakashi's as a gift for Kakashi's advancement into becoming Jonin. Kakashi had his eye cut in half by a rouge ninja.

Answer 3

obito uchiha transported it to him