#include #include #include<string.h> #include<stdio.h> #include<math.h> #include #include using namespace std; int main(){ int a,b,c,d; cin>>a>>b>>c>>d; cout<<a<<"/"<<b<<"+"<<c<<"/"<<d<<"="; int x,y; x=bd; y=ad+b*c; int r,ax,in; ax=max(x,y); in=min(x,y); r=ax%in; while(r != 0){ ax = in; in=r; r=ax%in; } int aa,bb,zs; aa=y/in; bb=x/in; if(aa>bb){ zs=(aa-aa%bb)/bb; aa%=bb; cout<<zs<<"+"<<aa<<"/"<<bb; }else{ cout<<aa<<"/"<<bb; } return 0; }