Fraction Addition Formula:
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Adding a negative fraction to a positive fraction follows the same rules as adding any two fractions, but requires careful attention to the signs. The result can be positive or negative depending on the relative magnitudes of the fractions.
The calculator uses the following formula:
Where:
Explanation: The calculator first finds a common denominator, then adds the numerators while accounting for their signs, and finally simplifies the result if possible.
Details: Understanding how to add positive and negative fractions is fundamental in algebra and appears in various real-world applications from physics to finance. It's essential for solving equations and understanding rates of change.
Tips: Enter the absolute values of the numerators and denominators. The calculator automatically handles the negative sign of the first fraction. Denominators must be positive integers.
Q1: Can I enter negative denominators?
A: No, denominators must always be positive. The negative sign should only be in the numerator of the first fraction.
Q2: What if the result is an improper fraction?
A: The calculator shows the result as-is (improper fraction) and also in simplified form if possible.
Q3: How does the calculator simplify fractions?
A: It uses the greatest common divisor (GCD) to reduce the fraction to its simplest form.
Q4: What if I get a negative result?
A: A negative result means the negative fraction was larger in magnitude than the positive fraction.
Q5: Can I use this for mixed numbers?
A: First convert mixed numbers to improper fractions before using this calculator.