Let m and n are natural numbers. Let d is gcd(m,n). 1- Show that dZ/nZ is isomorphic to Z(n/d) (Homomorphism, bijective, and find the kernel). Hint use first, second or third isomorphism theorem. Can we say dZ/nZ is equa to Z(n/d) 2- Show that is isomorphic dZ/nZ and also show that Zn/ is isomorphic to Z/dZ (Homomorphism, bijective, and find the kernel). Hint use first, second or third isomorphism theorem