Grade 7 Rational Numbers- ADDITION @classes6782
What are Rational Numbers? A rational number is any number that can be written as a fraction , where the numerator and denominator are integers and the denominator is not zero. Examples: 1 2 , − 3 4 , 0 , 5 , − 7 \frac{1}{2}, \frac{-3}{4}, 0, 5, -7 2 1 , 4 − 3 , 0 , 5 , − 7 (All are rational numbers) ➕ What is Addition of Rational Numbers? Addition of rational numbers means combining two or more rational values. We follow these rules: Same denominators → Add numerators Different denominators → Use LCM to make same denominators 🎯 Why is Adding Rational Numbers Important? 1. Used in Real Life Balancing bank accounts (profits and losses) Measuring temperatures (positive and negative degrees) Handling debts and credits (positive and negative money) 2. Foundational for Algebra Helps in simplifying expressions Used when solving equations and formulas 3. Develops Logical Thinking Teaches students to compare values, use LCM, and apply signs ...