CSCI 152 Program 5
Spring 2005 Due: Friday, 1 Apr
Emphasis on: Classes
You are to create and test a class to represent a positive fraction (with integer numerator and
denominator). The numerator and denominator should not be directly accessible by a client of
the class.
Write class functions to provide the following operations:
1) create a fraction, allowing client to initialize, or assigning default values of 0 for numerator
and 1 for denominator
2) assign a new value for a fraction (but if client asks for a denominator of 0, assign instead a
default value of 0/1)
3) output a fraction in the format n / d
If d is 1, as in 3/1, output as 3. If n is 0, as in 0/2, output as 0.
If n > d, as in 5/4, you may output as 5/4 or as 1 1/4.
4) add two fractions and return the fraction sum
5) subtract two fractions and return the fraction difference
6) multiply two fractions and return the fraction product
7) divide two fractions and return the fraction quotient
8) compare two fractions for equal, greater than, and less than, returning true or false
9) return the float equivalent for a fraction (for example, 3/4 is equivalent to .75)
10) reduce a fraction to its lowest terms (function is provided for you; see the other side)
11) return the numerator value
12) return the denominator value
I have provided the header file Fraction.h and an empty implementation file
Fraction.cpp as well as a test driver FractionTestDriver.cpp for you to use. You
need to fill in the class method implementations in Fraction.cpp as well as
expand the test driver to test the other class methods besides add, setValue and
print.
Rules for fraction operations:
a / b + c / d = (ad + bc) / bd
a / b - c / d = (ad - bc) / bd
a / b * c / d = ac / bd
a / b / c / d = ad / bc
a / b == c / d if and only if ad == bc
a / b < c / d if and only if ad < bc
a / b > c / d if and only if ad > bc
The client application should demonstrate calling the class functions so you can test to be sure
your functions are working correctly.
