If a and B are reciprocal, then 3 / A * 4 / B is equal to

If a and B are reciprocal, then 3 / A * 4 / B is equal to

1/12
(a/3)*(b/4)=ab/12
Because a and B are reciprocal, the product of the two numbers is 1, that is, ab = 1
So the original formula is 1 / 12