Write a program which accepts 2 rational numbers from the keyboard., each in the

Question

Write a program which accepts 2 rational numbers from the keyboard.,

each in the form  a,b and c,d where   a b is a/b and c d is   c/d

     example               ENTER a rational number:

                                             3 5

                                  Enter a second number::

                                             2   9

Check that the denominators are not =0

Write 4 functions called adds, subs, divs and mult. The main procedure calls

each function and passes the 2 rational numbers, and also 2 reference variables that will

  hold the result of the computation.

The main program then produces output for each pair as follows:

a/b + c/d   = x/y    and also in double format n.nnn

a/b   /   c/d = x/y and also in double format n.nnn

example       5/6 + 2/3 = 10/6     1.666

                     5/6    /   2/3 = 15/12    1.25

extra credit for reducing fractions 2/4 --> 1/2

      and simplifying 8/5 --> 1 3/5

Use the following data 3, 8 and 3, 5

   5, 9 and 2, 3

Explanation / Answer

#include <iostream>
#include <iomanip>
using namespace std;

void adds(int a, int b, int c, int d, int *x, int *y){
   *x = a * d + b * c;
   *y = b * d;
}
void subs(int a, int b, int c, int d, int *x, int *y){
   *x = a * d - b * c;
   *y = b * d;
}
void divs(int a, int b, int c, int d, int *x, int *y){
   *x = a * d;
   *y = b * c;
}
void muls(int a, int b, int c, int d, int *x, int *y){
   *x = a * b;
   *y = b * d;
}

void print(int a, int b){
   cout << a << "/" << b;
}

int main(){
   cout << fixed << setprecision(3);
   int a, b, c, d;
   int x, y;
   do{
       cout << "Enter a rational number: ";
       cin >> a >> b;
       if(b == 0) cout << "Denominator cannot be 0 ";
   }while(b == 0);
   do{
       cout << "Enter a second number: ";
       cin >> c >> d;
       if(d == 0) cout << "Denominator cannot be 0 ";
   }while(d == 0);

   adds(a, b, c, d, &x, &y);
   print(a, b);
   cout << " + ";
   print(c, d);
   cout << " = ";
   print(x, y);
   cout << " ";

   subs(a, b, c, d, &x, &y);
   print(a, b);
   cout << " - ";
   print(c, d);
   cout << " = ";
   print(x, y);
   cout << " ";

   divs(a, b, c, d, &x, &y);
   print(a, b);
   cout << " / ";
   print(c, d);
   cout << " = ";
   print(x, y);
   cout << " ";

   muls(a, b, c, d, &x, &y);
   print(a, b);
   cout << " * ";
   print(c, d);
   cout << " = ";
   print(x, y);
   cout << " ";
  
}

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