1. ## How do i make output answers into fractions?

Code:
```#include <iostream>
#include <cmath>

using namespace std;

int main (double x1 , double y1 , double x2 , double y2)
{
double midpointx;
double midpointy;
cout << "First Coordinate.\n" << endl << "Enter x " << endl;
cin >> x1;
cout << "Enter y " << endl;
cin >> y1;
cout << "Second Coordinate.\n" << endl << "Enter x " << endl;
cin >> x2;
cout << "Enter y " << endl;
cin >> y2;

midpointx = (x1 + x2)/2;
midpointy = (y1 + y2)/2;

cout << "The midpoint of your two coordinates is: ( " << (midpointx) << " , " << (midpointy) << " ). " << endl;
cin.get();
return 0;
}```
i made this basic program and i tested it and it works but i have a problem. If the answer is in a decimal such as doing the equation (5 divided by 2). The answer will come out as 2.5. Is there a way i can make the answer in a fration such as 5 over 2?. Also preferably the answer should be in fraction form if the equation does not divide evenly and should be a whole number if it does divide evenly.

EX : (5 divided by 2 answer should be 5/2)
(6 divided by 2 answer should be 3 and not 3/1)

Thanks!

2. Is there a way i can make the answer in a fration such as 5 over 2
You have to manually do it.
Take the double...
Depending on the no of significant figures, multiply by powers of 10.
Now the fraction is (d*100..)/100..
Use the HCF of the Numerator and Denominator to divide both.

3. Additionally, what are you doing with main()? I don't think I have seen that before, read How to define main()-FAQ

4. Sorry im really really really really new to C++ and i've only been learning for 3 days. Could you explain to me in simpler terms please? =\

5. Originally Posted by AndrewHunter
Additionally, what are you doing with main()? I don't think I have seen that before, read How to define main()-FAQ
I thought about that too, but is it applicable in certain scenarios ? ..like say...main receiving arguments from places other than the terminal ?

6. Originally Posted by iluvanimestyle
Sorry im really really really really new to C++ and i've only been learning for 3 days. Could you explain to me in simpler terms please? =\
There was nothing specific to programming in my explanation... It is just a little arithmetic.

7. Code:
```#include <iostream>
#include <cmath>

using namespace std;

int main (void)
{
double midpointx;
double midpointy;
double x1;
double y1;
double x2;
double y2;
cout << "First Coordinate.\n" << endl << "Enter x " << endl;
cin >> x1;
cout << "Enter y " << endl;
cin >> y1;
cout << "Second Coordinate.\n" << endl << "Enter x " << endl;
cin >> x2;
cout << "Enter y " << endl;
cin >> y2;

midpointx = (x1 + x2)/2;
midpointy = (y1 + y2)/2;

cout << "The midpoint of your two coordinates is: ( " << (midpointx) << " , " << (midpointy) << " ). " << endl;
cin.get();
return 0;
}```
so the code should be changed to this?

8. The second version is better...

This...
Code:
`int main (double x1 , double y1 , double x2 , double y2)`
... is NOT how you define variables.

9. Originally Posted by CommonTater
The second version is better...

This...
Code:
`int main (double x1 , double y1 , double x2 , double y2)`
... is NOT how you define variables.
i just have a few questions
what does putting variables inside the parenthesis in int main mean?
I did it and it was able to run so whats wrong with my first version?

10. what does putting variables inside the parenthesis in int main mean?
That main gets them as arguments.... so they are valid identifiers.