Adding fraction class and gcd functions

[chris111690]

I'm completely clueless on what needs to be done here can you help??
Heres my instructions:
"My solution to the Exam2 fraction calculator is in the subfolder 3.fraction_class_calc/exam2 final version. The Fraction class example from chapter 10 is in the subfolder 3.fraction_class_calc/chapter 10. textbook ....
Re-write the exam2 project so that is uses the Fraction class. It's probably best to base your work on a duplicate of the chapter 10 project. That is, modify the code in FractionTest.cpp so that it mimics the exam2 application. Remember to add the gcd() function to the Fraction class so that Fraction objects are displayed in reduced form. Show a screenshot with the following test cases:

TEST CASES
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1/2 + 1/4 == 3/4
1/2 * 4/5 == 2/5
1/2 - 1/8 == 3/8
3/8 / 1/2 == 3/4 "

The 2 files referenced are here:
http://www.mediafire.com/?pquq595p5noqy5n

I guess my question is, is it as simple as just entering the fraction class and the gcd command if so how do i do this.
btw i'm using devc++ to write this thanks.
Any help would be GREATLY Appreciated!!