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Unformatted text preview: 5.3 The Rational Numbers Rational numbers are numbers that can be expressed in the form a b , where a and b are integers, b ≠ 0. A rational number is reduced to its lowest terms , or simplified , when the numerator and denominator have no common divisiors other than 1. Fundamental Princial of Rational Numbers: If a b is a rational number and c is any number other than 0, a c a bc c = . Reduce each rational number to lowest terms: 1. 242 154 2. 60 144 3. 280 420 A mixed number consists of the sum of an integer and a rational number, expressed without the use of the plus sign. An improper fraction is a rational number whose numerator is greater than its denominator. A mixed number can be converted to an improper fraction by  multiplying the denominator of the fraction by the whole number and adding the numerator and  placing the result of these computations in the numerator and keeping the same denominator. numerator and  placing the result of these computations in the numerator and keeping the same denominator....
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- Fall '11
- Division, Fraction, Elementary arithmetic, Greatest common divisor, Divisor