Question

In mathematics, a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, p and q, with the denominator q not equal to zero. Since q may be equal to 1, every integer is a rational number. Define a class that can represent for a rational number. Use the class in a C++ program that can perform all of the following operations with any two valid rational numbers entered at the keyboard (must be entered with the format p/q; 3 points off for not doing this requirement): a. Adding two rational numbers. The result should be stored in reduced form. b. Subtracting two rational numbers. The result should be stored in reduced form. c. Multiplying two rational numbers. The result should be stored in reduced form. d. Dividing two rational numbers. The result should be stored in reduced form. e. Printing rational numbers in the form n/d, where n is the numerator and d is the denominator. f. Printing Rational numbers in floating-point format. Allow your program runs continuously until user wants to quit it. Lastly, your name must be displayed (only) before the termination of the program. Validate your input values; Reject all “junk” values with error message. For floating-point values, limit 2 digits after the dot. Note: There is no credit for not using class, or if your designed class does not represent for a rational number, where its attributes must contain only two integers, one for numerator and another for denominator.

Answer 1

#include<stdio.h> #include<iostream> #include<conio.h> #include<math.h> using namespace std; class rational { float numerator; float denom; public: void getdata() { cout<<"\n enter the numerator "; cin>>numerator; cout<<"\n enter the denominator "; cin>>denom; } void operator+(rational); void operator-(rational); void operator *(rational); void operator /(rational); }; void rational ::operator+(rational c1) { rational temp; float ans; temp.numerator=(numerator*c1.denom)+(c1.numerator*denom); temp.denom=denom*c1.denom; cout<<"\nrational no. after addition"; cout<<"\n numerator="<<temp.numerator<<"\n denominator ="<<temp.denom; cout<<"\n Reduced"<<round(temp.numerator/temp.denom); ans=temp.numerator/temp.denom; cout.precision(3); cout<<"\n Floating number"<<ans; } void rational ::operator -(rational c1) { rational temp; float ans1; temp.numerator=(numerator*c1.denom)-(c1.numerator*denom); temp.denom=denom*c1.denom; cout<<"\n rational no. after subtraction"; cout<<"\n numerator="<<temp.numerator<<"\n denominator ="<<temp.denom; cout<<"\n Reduced"<<round(temp.numerator/temp.denom); ans1=temp.numerator/temp.denom; cout.precision(3); cout<<"\n Floating number"<<ans1; } void rational ::operator *(rational c1) { rational temp; float ans2; temp.numerator=numerator*c1.numerator; temp.denom=denom*c1.denom; cout<<"\n rational no. after multiplication"; cout <<"\n numerator="<<temp.numerator<<"\n denominator ="<< temp.denom; cout<<"\n Reduced"<<round(temp.numerator/temp.denom); ans2=temp.numerator/temp.denom; cout.precision(3); cout<<"\n Floating number"<<ans2; } void rational :: operator /(rational c1) { rational temp; float ans3; temp.numerator= numerator*c1.denom; temp.denom=c1.numerator*denom; cout<<"\n rational no. after dividation"; cout <<"\n numerator="<<temp.numerator<<"\n denominator ="<<temp.denom; cout<<"\n Reduced"<<round(temp.numerator/temp.denom); ans3=temp.numerator/temp.denom; cout.precision(3); cout<<"\n Floating number"<<ans3; } int main() { rational c1, c2; int n; do { cout<<"\n 1. Enter data for rational no. "; cout<<"\n 2. Addition of rational no. "; cout<<"\n 3. Subtraction of rational no. "; cout<<"\n 4. Multiplication of rational no."; cout<<"\n 5. Division of rational no. "; cout<<"\n 6. Quit"; cout<<"\n Enter your choice"; cin>>n; switch(n) { case 1: cout<<endl<<"\n enter the data for first rational no."; c1.getdata(); cout<<endl<<"\n enter the data for second rational no. "; c2.getdata (); break; case 2: c1+c2; getch(); break; case 3: c1-c2; getch(); //clrscr(); case 4: c1*c2; getch(); //clrscr(); break; case 5: c1/c2; getch(); //clrscr(); break; case 6: cout<<"Your Name"; break; } } while (n!=6); return 0; getch(); }

C:\UserstJsca\ Desktop rational.exe σ .cpp-[Executing]-Dev-C++ 5.5.3 1. Enter data for rational no 2. Addition of rational no 3. Subtraction of rational no 4. Hultiplication of rational no 5. Division of rational no 6. Quit Enter your choice1 enter the data for first rational no enter the nunerator5 enter the denoninator 3 enter the data for second rational no enter the nunerator ? enter the denoninator 9 1. Enter data for rational no 2. Addition of rational no 3. Subtraction of rational no 4. Hultiplication of rational no 5. Division of rational no 6. Quit Enter your choice2 tional no after addition nune rator-66 denoninator-2? Reduced2 Floating nunber2.44 ersJaca\Desktopirational.exc"g3 I"C:\Program Files (x86) \Dev-Cpp\HinGN32 incluc :) 7:33 PM 410/2017 DEV i-1111