Question

use c++

Provide a header file as well. So for this question provide Rational.h, Rantional.cpp

Create a class called Rantional for performing arithmatic with fractions. Then write a program to test your class. Use integer variables to represent the private data of the class, meaning the numerator and the denominator. Provide a constructor that enables an object of this class to be initialized when it's declared. The constructor should contain default values in case no initializers are provided and should store the fraction in reduced form. For example fraction 2/4 would be stored in the object as 1 for the numerator and 2 for the denominator.
Note: Remember that denominator cannot be 0.
Provide public member functions that perform each of the following tasks:
a) add -- Adds 2 rational numbers. Result should be stored in reduced form.
b) subtract -- Subtracts 2 rational numbers. Store result in reduced form.
c) multiply -- Multiplies 2 rational numbers. Store result in reduced form.
Write a main() function to test above functionalites.

Post your output

Answer 1

// I HOPE I COULD HELP :)

OUTPUT

//CODE

#include<iostream>
#include<cstdlib>
using namespace std;
class Rational{
   int numerator;
   int denominator;
   public:
       Rational()
       {
           numerator=0;
           denominator=1;
       }
       Rational(int n,int d)
       {
           numerator=n;
           denominator=d;

       }
       bool isdenomZero()
       {
           if(denominator==0)
            return true;
           else return false;
       }
       void reduce(int &n,int &d)
       {
           int div=1;

           int small;

           if(abs(n)<abs(d))
           {
               small=abs(n);
           }
           else
            small=abs(d);
           for(int i=small;i>=1;i--)
           {
               if(n%i==0&&d%i==0)
               {
                   div=i;
                   break;
               }
           }

               n=n/div;
               d=d/div;

       }
       Rational add(Rational f2)
       {
           Rational result;
        int n1=this->numerator;
        int d1=this->denominator;
        int n2=f2.numerator;
        int d2=f2.denominator;
        int result_denom=d1*d2;
        int result_numer=n1*d2+n2*d1;
        reduce(result_numer,result_denom);
        result.numerator=result_numer;
        result.denominator=result_denom;
        return result;

       }

       Rational substract(Rational f2)
       {
           Rational result;
           int n1=this->numerator;
        int d1=this->denominator;
        int n2=f2.numerator;
        int d2=f2.denominator;
        int result_denom=d1*d2;
        int result_numer=n1*d2-n2*d1;
        reduce(result_numer,result_denom);
        result.numerator=result_numer;
        result.denominator=result_denom;
        return result;

       }

       Rational multiply(Rational f2)
       {
           Rational result;
        int n1=this->numerator;
        int d1=this->denominator;
        int n2=f2.numerator;
        int d2=f2.denominator;
        int result_denom=d1*d2;
        int result_numer=n1*n2;
        reduce(result_numer,result_denom);
        result.numerator=result_numer;
        result.denominator=result_denom;
        return result;
     }
       void display()
       {
           if(numerator!=0)
           cout<<numerator<<"/"<<denominator<<endl;
           else if(numerator==0)
           cout<<numerator<<endl;

       }

};
int main()
{//4/5
    Rational f1(1,2);
    Rational f2(1,2);
    cout<<"The first Rational number is: ";
    f1.display();
    cout<<"The second Rational number is: ";
    f2.display();

    //checking if user has entered a rational number with denominator=0
    if(f1.isdenomZero()||f2.isdenomZero())
    {
        cout<<"Denominator cannot be zero";
    }
    else
    {
    Rational f3;
    Rational f4;
    Rational f5;

    f3=f1.add(f2);
    f4=f1.multiply(f2);
    f5=f1.substract(f2);
    cout<<"Result after adding the two rational numbers: ";
    f3.display();
    cout<<"Result after multiplying the two rational numbers: ";
    f4.display();
    cout<<"Result after substracting the two rational numbers: ";
    f5.display();
    }

}