question_answer

The L.C.M of two numbers is x and their H.C.F is y. The product of two numbers is

A)  \[a+b=b+a\]                                    

B)  \[a\times b=b\times a\]

C)  \[(a+b)+c=a+(b+c)\]                     

D)  \[(a\times b)\times c=a\times (b\times c)\]