If R is a set of all real numbers and Q is the set of all rational numbers then what is R-Q? Share with your friends Share 0 Vishal Singh answered this Answer R: set of real numbers = {rational number , irrational number } Q: set of rational numbers = {irrational number } R - Q = set of irrational numbers. 2 View Full Answer Richa Anand answered this R - Q is the set of all irrational number. 1