Is 1/3 a rational or irrational number?

##1/3## is a rational number.

Rational Number- Rational number are those numbers which express the ratio between two whole numbers (in this case between 1 and 3). The numbers in decimal keep repeating a pattern to infinite or stop.

For Example - ##1/13## = ##0.076923076923...## (076923 keeps repeating) ##1/7## = ##0.14285714285714285...## (142857 keeps repeating)

##1/2## = ##0.5## (This number stops here)

&                    ##1/3## = ##0.333333333333333...## (3 keeps repeating  forever)

Irrational Number - Irrational number are those number which do not follow a pattern. The number in decimal do not follow a pattern.

For Example - ##pi## = ##3.14159265359...## (this never end & it does                                                             not have a certain pattern)

##sqrt2## = ##1.41421356237...## (This also never end & it                                                     also does not have a certain pattern)

The irrational number never stop nor follow certain pattern.