The Arithmetic operators are some of the C Programming Operator, which are used to perform arithmetic operations includes operators like Addition, Subtraction, Multiplication, Division and Modulus.
All these Arithmetic operators in C are binary operators which means they operate on two operands.
Below table shows all the Arithmetic Operators in C Programming with examples.
| Arithmetic Operators | Operation | Example |
|---|---|---|
| + | Addition | 10 + 2 = 12 |
| – | Subtraction | 10 – 2 = 8 |
| * | Multiplication | 10 * 2 = 20 |
| / | Division | 10 / 2 = 5 |
| % | Modulus – It returns the remainder after the division | 10 % 2 = 0 (Here remainder is zero). If it is 10 % 3 then it will be 1. |
Arithmetic Operators in C Example
In this arithmetic operator in c program, We are using two variables a and b and their values are 12 and 3.
We are going to use these two variables to perform various arithmetic operations present in Programming Language
/* Program to Perform Arithmetic Operations in C */
#include<stdio.h>
int main()
{
int a = 12, b = 3;
int addition, subtraction, multiplication, division, modulus;
addition = a + b; //addition of 3 and 12
subtraction = a - b; //subtract 3 from 12
multiplication = a * b; //Multiplying both
division = a / b; //dividing 12 by 3 (number of times)
modulus = a % b; //calculation the remainder
printf("Addition of two numbers a, b is : %d\n", addition);
printf("Subtraction of two numbers a, b is : %d\n", subtraction);
printf("Multiplication of two numbers a, b is : %d\n", multiplication);
printf("Division of two numbers a, b is : %d\n", division);
printf("Modulus of two numbers a, b is : %d\n", modulus);
}
NOTE: When we are using division (/) operator the result will completely depend upon the data type it belongs to.
For example, if the data type is an integer then division arithmetic operators in c will produce the integer value by rounding the value (5 / 2 = 2).
If you want the correct result then change the data type to float. Don’t get confused, let’s see one more example for better understanding
Arithmetic Operators in C using Float
For this arithmetic operators in c example program, We are using two variables a and b and their values are 7 and 3. We are going to use these two variables to show the problems we generally face while performing arithmetic operations on Int and Float Datatype.
/* C Program to Perform Division and Modulus on Float data type */
#include<stdio.h>
int main()
{
int a = 7, b = 3;
int integerdiv, modulus;
float floatdiv;
integerdiv = a / b; // dividing 7 by 3
modulus = a % b; // calculation the remainder
floatdiv = (float)a / b; // Converting int to float
printf("Division of two numbers a, b is : %d\n", integerdiv);
printf("Modulus of two numbers a, b is : %d\n", modulus);
printf("---------Correct Results is------- \n");
printf("Division of two numbers a, b is : %f\n", floatdiv);
}
Within the above arithmetic operators in c example, If you notice the result, we got two different results for the same calculation. Because for the first result, both a and b are integers and the output is also an integer (integerdiv). So the compiler neglects the term after the decimal point and shows answer 2 instead of 2.3333 and a % b is 1 because the remainder is 1.
Next, we changed the output data type to float (floatdiv), and also converted the result to float to get our desired result.
TIP: Please be careful, while using the division Operator (Type casting plays a major role here).