Since 1 Canadian Dollar is equal to 1.02131639712 Australian Dollars, we could say that n Canadian Dollars are equal to 1.02131639712 times n Australian Dollars. In other words, we could use the following formula:
Australian Dollars = Canadian Dollars x 1.02131639712
For example, let's say that we want to convert 2 Canadian Dollars to Australian Dollars. Then, we just replace Canadian Dollars in the abovementioned formula with 2:
Australian Dollars = 2 x 1.02131639712
That is, 2 Canadian Dollars are equal to 2.04263279424 Australian Dollars.