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How To Calculate Adding Fractions

Fraction Addition Steps:

\[ \frac{a}{b} + \frac{c}{d} = \frac{(a \times \frac{LCM}{b}) + (c \times \frac{LCM}{d})}{LCM} \]

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1. What is Fraction Addition?

Fraction addition is the process of combining two or more fractions into a single fraction. To add fractions, they must have the same denominator (common denominator). If they don't, we first find a common denominator before adding the numerators.

2. How Does Fraction Addition Work?

The process of adding fractions involves these steps:

\[ \frac{a}{b} + \frac{c}{d} = \frac{(a \times \frac{LCM}{b}) + (c \times \frac{LCM}{d})}{LCM} \]

Where:

Example: 1/4 + 1/6 = (3/12) + (2/12) = 5/12

3. Importance of Common Denominator

Details: The common denominator represents equal parts of the whole. Without a common denominator, we can't directly add the numerators because they represent different sized parts.

4. Using the Calculator

Tips: Enter the numerators and denominators of both fractions. Denominators must be positive integers. The calculator will find the LCM, add the fractions, and simplify the result.

5. Frequently Asked Questions (FAQ)

Q1: What if denominators are the same?
A: If denominators are identical, simply add the numerators and keep the same denominator.

Q2: How to find LCM?
A: LCM can be found by listing multiples or using prime factorization. The calculator uses the GCD method: LCM(a,b) = (a×b)/GCD(a,b).

Q3: What if the result is an improper fraction?
A: Improper fractions (where numerator ≥ denominator) are valid results, though you may convert them to mixed numbers if desired.

Q4: Can I add more than two fractions?
A: Yes, extend the same process - find LCM of all denominators, convert each fraction, then add all numerators.

Q5: What about negative fractions?
A: Negative fractions can be added by following the same rules of integer arithmetic for the numerators.

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