#include<stdio.h>//1
int main()
{
double a,b;
char c;
scanf("%lf %c %lf =",&a,&c,&b);
if(c=='+')
printf("%.4f",a+b);
else if(c=='-')
printf("%.4f",a-b);
else if(c=='*')
printf("%.4f",a*b);
else if((c=='/')&&(b!=0))
printf("%.4f",a/b);
else if((c=='/')&&(b==0))
printf("Error!");

return 0;

}


#include<stdio.h>//3
int main()
{
int t,n,m,y;
scanf("%d", &t);
for(int t=0;t<100;t++)
{
scanf("%d%d", &n, &m);
if(m==0)
printf("Error!");
else if(m==1)
printf("%d",n);
else
{
if(n<m)
{if(m%n!=0)
printf("%d/%d",n/(m%n),m/(m%n));
else
printf("1/%d",m/n);
}
}
}
return 0;
}