Rational is the head used for rational numbers.

Enter a rational number: In[1]:=22/7 Out[1]=22/7 Rational is the Head for rational numbers: In[2]:=Head[%] Out[2]=Rational

Protected

Rationals | Integer | Real | Numerator | Denominator | Rationalize | RealValuedNumberQ

206th most common (1 in 5860 symbols)

333rd most common (1 in 11300 symbols)

279th most common (1 in 3710 symbols)

introduced in Version 1 (June 1988)