#include<iomanip>
#include<stdio.h>
#include<math.h>
#include<cstring>
using namespace std;
int main(){
	int a,b,c,d;
	cin>>a>>b>>c>>d;
	cout<<a<<"/"<<b<<"+"<<c<<"/"<<d<<"=";
	int x,y;
	x=b*d;//分母
	y=a*d+b*c;//分子
	int r,ax,in;
	ax=max(x,y);//大数（用来求最大公倍数）
	in=min(x,y);//小数
	r=ax%in;//r为余数
	while(r!=0){//while求最大公倍数来化简
		ax=in;
		in=r;
		r=ax%in;
	}
	int aa,bb,zs;//约分后的分子分母与输出答案的整数部分
	aa=y/in;
	bb=x/in;
	if(aa>bb){//求整数部分
		zs=(aa-aa%bb)/bb;
		aa%=bb;
		cout<<zs<<"+"<<aa<<"/"<<bb;
	}else{//分情况
		cout<<aa<<"/"<<bb;
	}
	return 0;
}

#include <bits/stdc++.h>//直接使用万能头
using namespace std;
int gcd(int a,int b){
	if(b == 0){
		return a;
	}
	return gcd(b,a % b);
}
int main(){
	int a,b,c,d;
	cin >> a >> b >> c >> d;
	int aa = a * d + b * c,bb = b * d,x = gcd(aa,bb);
	aa /= x;
	bb /= x;
	if(aa > bb){
		cout << a << "/" << b << "+" << c << "/" << d << "=" << aa / bb << "+" << aa % bb << "/" << bb;
	}
	else{
		cout << a << "/" << b << "+" << c << "/" << d << "=" << aa << "/" << bb;
	}
	return 0;
	}

#include <stdio.h>
#include <iostream>
using namespace std;
int main()
{
	int a, b, c, d;
	cin >> a >> b >> c >> d;
	// printf("%d/%d+%d/%d=",a,b,c,d);
	cout << a << "/" << b << "+" << c << "/" << d << "=";
	int y = b*d;
	int x = a*d + c*b;
	if(x>y)
	{
		cout << x/y;
		x = x%y;
		if(x%y !=0)
		{
			cout << "+";
		}
	}
	a = x, b = y;
	while(b)
	{
		int t = a%b;
		a = b;
		b = t;
	} 
	if(a != 0)
	{
		x = x/a;
		y = y/a;
		cout << x << "/"<<y<<endl;

	}
}

#include <bits/stdc++.h> //使用万能头
using namespace std;
int zdgys(int a,int b){ //用辗转相除法求最大公因数(a,b)
	int t;
	if(a < b){ //a和b的值交换
		t = a;
		a = b;
		b = t;
	}
	while(a % b != 0){ //开始辗转相除法
		t = b;
		b = a % b;
		a = t;
	}
	return b;
}
int zxgbs(int a,int b,int c){ //求最小公倍数[a,b],c为最大公因数(a,b)
	return a * (b / c);
}
int a,b,c,d,e,f,g,jga,jgb;
int main(){
	cin >> a >> b >> c >> d;
	cout << a << "/" << b << "+" << c << "/" << d << "=";
	e = zdgys(b,d);      //
	f = zxgbs(b,d,e);    //
	a = a * (f / b);     //通
	b = f;               //分
	c = c * (f / d);     //
	d = f;               //
	jga = a + c;
	jgb = b;
	g = jga / jgb;
	jga %= jgb;
	e = zdgys(jga,jgb);
	if(e != 1){          //
		jga /= e;        //约
		jgb /= e;        //分
	}                    //
	if(g == 0) cout << jga << "/" << jgb << endl;
	else cout << g << "+" << jga << "/" << jgb << endl;
	return 0;
}