Please help me with only the comparison operators:

The comparison operators must compare the decimal values.

How can I use the toDecimal() function with the comparison operators?

Here is my program:

#include // For input and output

#include // For input/output string stream (class )

#include // For the C math library

using namespace std; // For C standard library

// Start of class Fraction

class Fraction {

private:

// Declare the private variables

int numerator;

int denominator;

public:

// Default Constructor

Fraction() {

// Setting the default fraction of numerator of 1

// and denominator of 1

numerator = 0;

denominator = 1;

}

// Overloaded constructor

Fraction(int numTop, int denBottom) {

numerator = numTop;

denominator = denBottom;

}

// Setter function for numerator

void setNumerator(int n) {

numerator = n;

}

// Getter function for numerator

int getNumerator() const {

return numerator;

}

// Setter function for denominator

void setDenominator(int d) {

denominator = d;

}

// Getter function for denominator

int getDenominator() const {

return denominator;

}

// Fraction to decimal converter "toDecimal"

double toDecimal() {

return static_cast(numerator) / denominator;

}

// Convert the fraction to a string using the append and

// to string methods

string toSring() {

string decimalStr = "";

decimalStr.append(to_string((int)numerator));

decimalStr.append("/");

decimalStr.append(to_string((int)denominator));

return decimalStr;

}

// Reduce fraction function using gcd function

int reduce() {

int numer = numerator;

int denom = denominator;

int gcd;

while (numer != denom) {

if (denom > numer)

denom -= numerator;

else

numer -= denom;

}

numerator = numerator / numer;

denominator = denominator / numer;

return numer;

}

// Assign numerator and denominator of fraction two to

// numerator and denominator of fraction one

Fraction &operator=(const Fraction &f2) {

numerator = f2.numerator;

denominator = f2.denominator;

return *this;

}// Operator=

// Increment the numerator operator++

Fraction &operator++() {

++numerator;

return *this;

}// Operator++

// Decrement the numerator operator--

Fraction &operator--() {

--numerator;

return *this;

}// Operator++

};// End of class Fraction

Fraction f1, f2;

// Overloaded operators

// Is fraction one equal to fraction two?

bool operator==(const Fraction &f1, const Fraction &f2) {

if (f1 == f2)

return true;

else

return false;

}// Operator ==

// Is fraction one less than fraction two?

bool operator<(const Fraction &f1, const Fraction &f2) {

return (f1 < f2);

}// Operator <

// Is fraction one less than or equal to fraction two?

bool operator<=(const Fraction &f1, const Fraction &f2) {

return (f1 <= f2);

}// Operator <=

// Is fraction one greater than fraction two?

bool operator>(const Fraction &f1, const Fraction &f2) {

return (f1 > f2);

}// Operator >

// Is fraction one greater than or equal to fraction two?

bool operator>=(const Fraction &f1, const Fraction &f2) {

return (f1 >= f2);

}// Operator >=

// Start of main

int main()

{

Fraction frac; // Declare a Fraction object

// Declare and initialize variables

int numerator = 0; // User input numerator variable

int denominator = 0; // User input denominator variable

// Display the fractions default values that has a

// numerator of 0 and a denominator of 1

cout << "The numerator is: " << frac.getNumerator() << endl;

cout << "The denominator is: " << frac.getDenominator() << endl;

cout << "Setting and displaying a numerator of 2." << endl;

frac.setNumerator(2);

cout << "The numerator is now: " << frac.getNumerator() << endl;

cout << "Setting and displaying a denominator of 3." << endl;

frac.setDenominator(3);

cout << "The denominator is now: " << frac.getDenominator() << endl;

// "Prompt the user for a numerator

cout << "Please enter a numerator: " << endl;

cin >> numerator;

// Set the numerator

frac.setNumerator(numerator);

// "Prompt the user for a denominator and

// "check for division by 0

cout << "Please enter a denominator: " << endl;

cin >> denominator;

// Check for denominator = 0

while (denominator == 0) {

cout << "Please enter a denominator other than 0" << endl;

cin >> denominator;

}

// Set the denominator to valid arguement

frac.setDenominator(denominator);

cout << "The denominator was set to " << "\'" << frac.getDenominator()

<< "\'" << " which is greater than 0." << endl;

// Declaring second fraction object frac1

Fraction frac1;

// Converting default numerator and denominator values to decimal

cout << "Converting default numerator and denominator values to decimal."

<< endl;

cout << "The numerator is: " << frac1.getNumerator() << endl;

cout << "The denominator is: " << frac1.getDenominator() << endl;

cout << "Converting the numerator and denominator to decimal." << endl;

// Convert default fraction to decimal and store in declared variable

double decimal = frac1.toDecimal();

// Display the converted fraction to decimal value

cout << "The converted fration to it's equivalent decimal value is: "

<< decimal << endl;

// Convert the numerator and denominator of frac to string

string deciString = frac.toSring();

// Display the converted fraction to string

cout << "The fraction frac converted to string is: " << deciString

<< endl;

// Setting different values for numerator and denominator for frac1

cout << "Set the numerator of object frac1 to 4 and "

<< " set the denominator to 12." << endl;

frac1.setNumerator(4); frac1.setDenominator(12);

cout << "The numerator and denominator of object frac1 are "

<< frac1.getNumerator() << ", " << frac1.getDenominator()

<< " respectively." << endl;

// Call the reduce fraction method to reduce the fraction of frac1

int gcd = frac1.reduce();

cout << "The greatest common denominator of frac1 is: " << gcd << endl;

cout << "And the equivalent reduced fraction of frac1 is: "

<< frac1.getNumerator() << "/" << frac1.getDenominator() << endl;

// Set the Fraction object "frac" to 1/2 to compare to "frac1"

cout << "Setting Fraction object \"frac\" to 1/2." << endl;

frac.setNumerator(1); frac.setDenominator(2);

// Use the overloaded comparison operator "==" to compare

// frac and frac1

if (frac == frac1) {

cout << "The two fractions frac and frac1 are equal." << endl;

}

else {

cout << "The two fractions frac and frac1 are not equal." << endl;

}

// Use the overloaded operators "<" to compare frac and frac1

if (frac.toDecimal() < frac1.toDecimal()) {

cout << "Fraction 1 is less than fracton 2." << endl;

}

else{

cout << "Fraction 1 is not less than fraction 2." << endl;

}

// Use the overloaded operators "<=" to compare frac and frac1

if (frac.toDecimal() <= frac1.toDecimal()) {

cout << "Fraction 1 is less than or equal to fracton 2." << endl;

}

else {

cout << "Fraction 1 is not less than or equal to fraction 2." << endl;

}

// Use the overloaded operators ">" to compare frac and frac1

if (frac.toDecimal() > frac1.toDecimal()) {

cout << "Fraction 1 is greater than fracton 2." << endl;

}

else {

cout << "Fraction 1 is not greater than fraction 2." << endl;

}

// Use the overloaded operators ">=" to compare frac and frac1

if (frac.toDecimal() >= frac1.toDecimal()) {

cout << "Fraction 1 is greater than or equal to fracton 2." << endl;

}

else {

cout << "Fraction 1 is not greater than or equal to fraction 2." << endl;

}

// Display fract and frac1's contents

cout << "The numerator and denominator of frac are: "

<< frac.getNumerator() << " and " << frac.getDenominator()

<< " respectively." << endl;

cout << "The numerator and denominator of frac1 are: "

<< frac1.getNumerator() << " and " << frac1.getDenominator()

<< " respectively." << endl;

// Assign the numerator and denominator of frac1 to frac

cout << "Assigning frac1 numerator and denominator to frac" << endl;

frac = frac1;

// Display frac assigned contents

cout << "The numerator and denomenator of frac are now: "

<< frac.getNumerator() << " and " << frac.getDenominator()

<< " respectively." << endl;

// Increment the numerator of frac

cout << "The value of frac is: " << frac.getNumerator()

<< "/" << frac.getDenominator() << ".";

// Increment frac

++frac;

cout << " Incrementing frac by 1 is: " << frac.getNumerator()

<< "/" << frac.getDenominator() << endl;

// Decrement the numerator of frac

cout << "The value of frac is: " << frac.getNumerator()

<< "/" << frac.getDenominator() << ".";

// Decrement frac

--frac;

cout << " Decrementing frac by 1 is: " << frac.getNumerator()

<< "/" << frac.getDenominator() << " ";

system("pause"); // Pause the program

return 0; // Return 0 if all went well

}// End of main