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. Pages: 1 2