int main()
{
int n = 10, i;
float a = 2, b = 9, sum = 0, div;
for(i = 0; i < n; i++)
{
 div = a/b;
 sum += div;
 a += 3;
 b += 4;
}
printf("The sum is %f", sum);
return 0;
}

The sum is 5.253715