Matching Pairs NumbersOnline version Rational, Irrational, and Negative Rational Numbers by Kirsten Lucas 1 Negative Rational Number example: 2 A Rational Number is: (Definition) 3 A Irrational Number is: (Definition) 4 Irrational Number example: 5 Rational Number example: 6 A Negative Rational Number is: (Definition) A number that can be written as a ratio/fraction of two numbers/integers. It can be expressed as a fraction or whole number. 2/-8 √81 √11 A fraction where either the numerator or denominator is positive and the other is negative. Any real number that can’t be written as a fraction. There is no way to express them.