ASSOCIATIVITY The addition of rational numbers is associative

ASSOCIATIVITY The multiplication of rational numbers is associative.That is if (a)/(b)(c)/(d) and (e)/(f) and (e)/(f) are three rational numbers then ((a)/(b)xx(a)/(d))xx(e)/(f)=(a)/(b)xx((c)/(d)xx(e)/(f))

COMMUTATIVITY The addition of rational numbers is commutative

Gold number is associated with

Gold number is associated with :

ASSOCIATIVITY If abc are any three whole numbers then (a+b)+c=a+(b+c) In other words the addition of whole numbers is associative.

The binary operation * is defined by a*b=(ab)/(7) on the set Q of all rational numbers.Show that * is associative.

A is associated with