Arithmetic Operators in C

 

💻 Arithmetic Operators in C (Easy + Clear Explanation)

In C (developed by Dennis Ritchie), arithmetic operators are used to perform mathematical operations ➕➖✖️➗

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🔹 What are Arithmetic Operators? 🤔

These operators are used to:
👉 Add, subtract, multiply, divide numbers

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🔹 Types of Arithmetic Operators

Operator	Name	Example	Meaning
+	Addition	a + b	Add two values
-	Subtraction	a - b	Subtract
*	Multiplication	a * b	Multiply
/	Division	a / b	Divide
%	Modulus	a % b	Remainder

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🔹 Examples of Each Operator

🔸 1. Addition (+)

int a = 10, b = 5;
printf("%d", a + b);

👉 Output: 15

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🔸 2. Subtraction (-)

printf("%d", a - b);

👉 Output: 5

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🔸 3. Multiplication (*)

printf("%d", a * b);

👉 Output: 50

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🔸 4. Division (/)

printf("%d", a / b);

👉 Output: 2

👉 ⚠️ Important:

• If both are integers → result is integer
• Decimal part is removed

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🔸 5. Modulus (%)

printf("%d", a % b);

👉 Output: 0

👉 Gives remainder

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🔹 Complete Program Example 🧠

#include <stdio.h>

int main() {
    int a = 10, b = 3;

    printf("Addition = %d\n", a + b);
    printf("Subtraction = %d\n", a - b);
    printf("Multiplication = %d\n", a * b);
    printf("Division = %d\n", a / b);
    printf("Modulus = %d\n", a % b);

    return 0;
}

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🔹 Output 🎉

Addition = 13
Subtraction = 7
Multiplication = 30
Division = 3
Modulus = 1

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🔹 Important Points ⚠️

✔ % works only with integers
✔ Division of integers removes decimal
✔ Use float for decimal division

👉 Example:

float x = 10, y = 3;
printf("%f", x / y);  // 3.333333

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🔹 Real-Life Example 🤔

👉 + → adding money 💰
👉 - → spending money 💸
👉 * → multiple items 🛒
👉 / → sharing equally 🤝
👉 % → leftover 🍕

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🔹 Final Summary 📝

• Arithmetic operators perform math operations
• + - * / % are main operators
• % gives remainder
• Integer division removes decimals