Project: Write a module to do computation with rational numbers. The rational numbers should be represented as a structure with two integers, the numerator and the denominator. Provide assignment,...

Project: Write a module to do computation with rational numbers. The rational

numbers should be represented as a structure with two integers, the numerator

and the denominator. Provide assignment, some input/output, and some of the

usual arithmetic operators. Addition and subtraction are harder than multiplication and division, and equality is nontrivial if the rational numbers are not reduced

to lowest terms.