What two ratios equivalent to the ratio of 9/4?

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,

These are the multiples of 15 but what you are probably asking or what are the factors of 15