RATPRI _ _ _ _ _ _ _ _ _ _ _ _ switch
When the ratpri switch is on, rational expressions and fractions are printed as two lines separated by a fraction bar, rather than in a linear style. Default is on.
3/17; 3 -- 17 2/b + 3/y; 3*B + 2*Y --------- B*Y off ratpri; 3/17; 3/17 2/b + 3/y; (3*B + 2*Y)/(B*Y)