Formula for adding three fractions:
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Adding three fractions involves finding a common denominator and then combining the numerators. The result is a new fraction that represents the sum of the three original fractions.
The calculator uses the following formula:
Where:
Explanation: The calculator finds the common denominator by multiplying all three denominators together, then adjusts each numerator accordingly before adding them together.
Details: Adding fractions is fundamental in mathematics and has applications in various fields including engineering, physics, and everyday measurements. Understanding this operation is crucial for solving more complex mathematical problems.
Tips: Enter all six values (three numerators and three denominators). Denominators must be positive integers. The calculator will provide both the exact fractional result (simplified if possible) and a decimal approximation.
Q1: What if I get a negative result?
A: Negative results are valid and indicate the sum of the fractions is negative. This occurs when the combined negative numerators outweigh the positive ones.
Q2: Why must denominators be positive?
A: By mathematical convention, denominators cannot be zero (undefined) or negative (sign is carried by the numerator).
Q3: How does simplification work?
A: The calculator finds the greatest common divisor (GCD) of the numerator and denominator and divides both by this number to simplify the fraction.
Q4: Can I enter decimal numbers?
A: The calculator accepts decimal inputs, but for exact fractional results, it's best to enter fractions in their original form.
Q5: What if my result is an improper fraction?
A: Improper fractions (where numerator > denominator) are valid results. You may convert to a mixed number if desired.