Let * be a binary operation on N given by a*b =Lcm of a and b find the value of 20*16

Let * be the binary operation on N given by a*b = l.c.m. of a and b. Find 5 * 7, 20 * 16

Let* be the binary operation on N given by a*b=LCM of a and b.Find the identity of * in N

Let * be the binary operation on N given by a*b = LCM of a and b. Find (i) 5*7,20*16 (ii) Is* commutative? (iii) Is * associative? (iv) Find the identity of* in N. (v) Which elements of N are invertible for the operation ?

Let ** ' be the binary operation on N given by a**'b = L.c.m. of a and b. Find the identify of ** in N

Let " *" be a binary operation on N given by a"*"b =LCM of a and b. Find 20"*"16.

Let ** ' be the binary operation on N given by a**'b = L.c.m. of a and b. Find 5**7, 20**16

Let ** be the binary operation on N given by a**b = L.C.M. of a and b. Find Which elements of N are invertible for the operation ** ?

Let ** be the binary operation on N given by a**b = L.C.M. of a and b. Find Find the identity of ** in N.

Let ** be binary operation on N given by a ** b = LCM of a and b. Find Find the identity of ** in N.