I never learned fractions… plz help

(hurry! ) which expression is equivalent to the following complex fraction?

Let x = a + bi and y = c + di and z = f + gi. which statements are true?

Consider a= {x|x is alive} f={x|x is in france} m={x|x is a national monument} w{x|x is a woman}. which statements are true regarding elements of the given sets? check all that apply.