Calculation of fractions

1. Operator overloading

2, Class of packaging

#include <stdio.h>#include<algorithm>#include<iostream>using namespacestd;intgcdintMintN///Beg Greatest common divisor{    if(n==0)        returnm; Else returnGCD (n,m%n);}classfraction{ Public: fraction (); Fraction (intAintb): molecule (a), denominator (b) {}voidSetData (); voiddisplay (); Fractionoperator* (Fraction &a) {fraction C; intTemp1;///molecule        intTemp2;///Denominator        intL///Greatest Common Divisortemp1= This->molecule*A.molecule; Temp2= This->denominator*A.denominator; L=gcd (TEMP1,TEMP2); C.molecule=temp1/m; C.denominator=temp2/m; returnC; } Fractionoperator+ (Fraction &a) {fraction C; intTemp1;///molecule        intTemp2;///Denominator        intL///Greatest Common Divisortemp1= This->molecule*a.denominator+ This->denominator*A.molecule; Temp2= This->denominator*A.denominator; L=gcd (TEMP1,TEMP2); C.molecule=temp1/L; C.denominator=temp2/m; returnC; } Fractionoperator-(Fraction &a) {fraction C; intTemp1;///molecule        intTemp2;///Denominator        intL///Greatest Common Divisortemp1= This->molecule*a.denominator- This->denominator*A.molecule; Temp2= This->denominator*A.denominator; L=gcd (TEMP1,TEMP2); C.molecule=temp1/m; C.denominator=temp2/m; returnC; } Fractionoperator/(Fraction &a) {fraction C; intTemp1;///molecule        intTemp2;///Denominator        intL///Greatest Common Divisortemp1= This->molecule*A.denominator; Temp2= This->denominator*A.molecule; L=gcd (TEMP1,TEMP2); C.molecule=temp1/m; C.denominator=temp2/m; returnC; }Private:    intmolecule;///molecule    intdenominator;///Denominator}; Fraction::fraction () {molecule=0; Denominator=1;}voidFraction::setdata () {cin>>molecule>>denominator;}voidfraction::d isplay () {cout<<molecule<<"/"<<denominator<<Endl;}intMain () {fraction a,b,c; printf ("This is fraction ' s operation\n"); printf ("Please input your wants fraction ' s operation\n"); Charo; scanf ("%c",&o); System ("CLS"); Switch(o) { Case '+': printf ("Please input fraction ' s molecule and imag\n");        A.setdata ();        B.setdata (); C=a+b;        C.display ();  Break;  Case '-': printf ("Please input fraction ' s molecule and imag\n");        A.setdata ();        B.setdata (); C=a-b;        C.display ();  Break;  Case '*': printf ("Please input fraction ' s molecule and imag\n");        A.setdata ();        B.setdata (); C=a*b;        C.display ();  Break;  Case '/': printf ("Please input fraction ' s molecule and imag\n");        A.setdata ();        B.setdata (); C=a/b;        C.display ();  Break; } System ("Pause"); return 0;}

Calculation of fractions