Real variable instance

1、1.0/3*3 How much ？

#include <stdio.h>

void main()
{
	float a, b, c,d;
	a = 1.0;
	b = 3;
	c = 3;
	d = a / b * c;
	printf("a / b * c=%f\n", d);
}

Execution results ：a / b * c=1.000000

2、3/2= How many? ？

#include <stdio.h>

void main()
{
	float a, b, c;
	a = 3;
	b = 2;
	c = a / b;
	printf("a / b =%f\n", c);
}

Execution results ：a / b =1.500000

3、1/3*3 How much ？

#include <stdio.h>

void main()
{
	float a, b, c, d;
	a = 1;
	b = 3;
	c = 3;
	d = a / b * c;
	printf("a / b * c=%f\n", d);
}

Execution results ：a / b * c=1.000000