ARITHMETIC OPERATOR

Introduction
You can process data using arithmetic operators such as +, -, *, \ and the modulus operator %. % indicates the remainder after integer division; % cannot be used for float data type or double data type. If both operands i1 and i2 are integers, the expression i1/i2 provides integer division, even if the target is a floating point variable. The operators have normal precedence rules, as follows:

Unary operators such as −, + are evaluated.

The multiplication (*) and division (/,%) operators are evaluated.

The addition (+) and subtraction (−) operators are evaluated.

The assignment operator is evaluated.

The expressions are evaluated from left to right for unary operators. The assignment is from right to left.

Program

#include

main( )
{
int a,b,c,d;
int sum,sub,mul,rem;
float div;
printf("ENTER VALUES OF b, c, d");
scanf("%d%d%d",&b&c,&d);
sum = b+c;
sub = b-c;
mul = b*c;
div = b/c;
rem = b%d;
a = b/c * d;
printf("\n sum = %d, sub = %d, mul = %d, div = %f",sum,sub,mul,div);
printf("\n remainder of division of b & d is %d",rem);
printf("\n a = %d",a);
}

Input
b = 10, c = 5, d= 3.

Output
ENTER VALUES OF b, c, d
10
5
3

sum = 15, sub = 5, mul = 50, div = 2.0
remainder of division of b & d is 1
a = 6

Explanation
Suppose you have the expression

a = b/c * d

Here / and * both have the same priority. b/c first is evaluated because the expression is evaluated from left to right.

After evaluating the expression b/c * d, the value is assigned to a because the assignment operator has an order of evaluation from right to left, that is, the right expression is evaluated first.