The product of two rational numbers is always a

If a, b, c, and d are integers, b and d not zero, then

(a/b)*(c/d) = (ac)/(bd)

The set of integers is closed for multiplication (any product of integers is an integer), so any product of rationals will be rational.

*number.***rational**If a, b, c, and d are integers, b and d not zero, then

(a/b)*(c/d) = (ac)/(bd)

The set of integers is closed for multiplication (any product of integers is an integer), so any product of rationals will be rational.