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#include <iostream>
#include <cstdlib>
using namespace std;
class Fraction{
public:
void input();
void output(); //output
Fraction() {set(0, 1);} //default constructor
Fraction(int num, int den) {set(num, den);} //constructor (int, int)
void set(int num, int den) //setter
{n = num; d = den; normalize();}
int get_num() {return n;}
int get_den() {return d;}
//operations
Fraction add(Fraction other);
Fraction sub(Fraction other);
Fraction mul(Fraction other);
Fraction div(Fraction other);
private:
int gcd(int n, int d);
int lcm(int n, int d);
int n, d;
void normalize();
};
int main(){
Fraction frac1(3,2), frac2(4,6), frac3;
int choice;
string symbol, operator1;
cout << "Calculator Options: \n";
cout << "\tAddition.\n";
cout << "\tSubtraction.\n";
cout << "\tMultiplication.\n";
cout << "\tDivision.\n";
cout << "Enter your choice: ";
cin >> choice;
cout << "Fraction 1 is: ";
frac1.output();
cout << endl;
cout << "Fraction 2 is: ";
frac2.output();
cout << endl;
switch(choice){
case 1:
symbol = " + ";
operator1 = "sum";
frac3 = frac1.add(frac2); break;
case 2:
symbol = " - ";
operator1 = "rest";
frac3 = frac1.sub(frac2); break;
case 3:
symbol = " x ";
operator1 = "multiplication";
frac3 = frac1.mul(frac2); break;
case 4:
symbol = " / ";
operator1 = "division";
frac3 = frac1.div(frac2); break;
default:
symbol = " + ";
operator1 = "sum";
frac3 = frac1.add(frac2);
}
cout << "The ";
cout << operator1;
cout << " of: ";
frac1.output();
cout << symbol;
frac2.output();
cout << " = ";
frac3.output();
cout << endl << endl;
return 0;
}
void Fraction::normalize(){
if (d == 0 || n == 0){
n = 0;
d = 1;
}
if (d < 0){
n *= -1;
d *= -1;
}
int g = gcd(n, d);
n /= g;
d /= g;
}
int Fraction::gcd(int n, int d){
if(d == 0)
return abs(n);
else
return gcd(d, n&d);//ERROR FOUND CHANGE & TO %
}
int Fraction::lcm(int n, int d){
int g = gcd(n, d);
return n/g *d;
}
void Fraction::output(){
if(d == 1)
cout << n;
else
cout << n << "/" << d;
}
void Fraction::input(){
cout << "Enter numerator: ";
cin >> n;
cout << "Enter denominator: ";
cin >> d;
}
//sum
Fraction Fraction::add(Fraction other){
int l = lcm(d, other.d);
int n1 = l/d;
int n2 = l/other.d;
int num1 = (n * n1) + (other.n * n2);
int den1 = l;
Fraction frac33;
frac33.set(num1, den1);
return frac33;
}
//subtraction
Fraction Fraction::sub(Fraction other){
int l = lcm(d, other.d);
int num1 = n * other.d - other.n * d;
int den1 = l;
Fraction frac3(num1, den1);
return frac3;
}
//multiplication
Fraction Fraction::mul(Fraction other){
int num1 = n * other.n;
int den1 = d * other.d;
Fraction frac3(num1, den1);
return frac3;
}
//division
Fraction Fraction::div(Fraction other){
int num1 = n * other.d;
int den1 = d * other.n;
Fraction frac3(num1, den1);
return frac3;
}
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