c for largest number

#include<stdio.h>
#include<conio.h>
main()
{
float a,b,c;
printf("Enter three values(separeted by space):");
scanf("%f%f%f",&a,&b,&c);
printf("The smallest value is:");
if(a<b)
{
if(a<c)
printf("%f",a);
else
printf("%f",c);
}
else
{
if(b<c)
printf("%f",b);
else
printf("%f",c);
}
getch();
}