Rational Numbers

January 25, 2011

A rational number, or fraction, is the ratio of two integers; for instance, 4/7 is the ratio of 4 (the numerator) divided by 7 (the denominator). No rational number may have a denominator of zero. Rational numbers respond to all the same operations as integers, including addition, subtraction, multiplication and division, and they may also be compared by the less-than operator.

Your task is to write functions that perform arithmetic on rational numbers. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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