A. determine whether the ratios 10/20 and 30/60 can form a proportion by finding a common multiplier. b. show that the ratios in part (a) are equal by writing them in simplest form. explain how you got the answers to these questions.

To simplify one by one, step by step, proving that they are the same:

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,