Enter two numbers and an arithmetic operator and do the respective operation

#include <stdio.h>
#include <conio.h>
int main()
{
    char i;
    int a,b;
    printf("enter two numbers\n");
    scanf("%d%d",&a,&b);
    printf("enter arithmetic operator '+' or '-' or '/' or'*'\n");
    i=getche();
    printf("\b");
    if(i=='+')
        printf("%d + %d = %d",a,b,a+b);
    else if(i=='-')
        printf("%d - %d = %d",a,b,a-b);
    else if(i=='*')
        printf("%d * %d = %d",a,b,a*b);
    else if(i=='/')
        printf("%d / %d = %f",a,b,(float)a/b);
    else
        printf("wrong arithmetic operator selected");
    return 0;
}