Is 1/8 rational or irrational?

A number is rational if it can be written as the ratio of two integers.
The ratio of two integers is a fraction, and you just did it.  Your number
is the ratio of 1 to 8 .  It's about as rational as you can get.

Here's a fun fact that's easy to remember:
ANY number that you can write down on paper, completely, with digits
and a decimal point or a fraction bar if you need them, is rational.

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,