question_answer

What should be subtracted from \[\frac{a}{b}\] so that the resulting fraction will be reverse of the fraction?

A) \[\frac{ab}{{{a}^{2}}-{{b}^{2}}}\]

B)        \[\frac{{{a}^{2}}-{{b}^{2}}}{ab}\]

C) \[{{a}^{2}}+{{b}^{2}}\]      

D) \[{{a}^{2}}-{{b}^{2}}\]

E) None of these