Free Fraction Calculator
Enter two fractions and choose an operation to get the answer simplified to lowest terms — with the decimal value and mixed-number form where it applies. Great for homework, recipes and measurements.
How to Use the Fraction Calculator
- Enter both fractions as numerator and denominator.
- Choose Add, Subtract, Multiply or Divide.
- Click Calculate for the simplified answer and decimal value.
Features
Handles all four operations with proper cross-multiplication, reduces results using the greatest common divisor, normalizes negative signs, and shows the decimal equivalent to six places.
Benefits & Use Cases
Students check homework, cooks scale recipes with awkward fractions, and DIYers add up measurements in inches without decimal guesswork.
Tips
Always double-check which number is the numerator (top) and which is the denominator (bottom) — swapping them is the most common fraction mistake.
Frequently Asked Questions
How are fractions added?
Find a common denominator via cross-multiplication, add the numerators, then simplify the result.
What does “simplified” mean?
Dividing numerator and denominator by their greatest common divisor, e.g. 4/8 becomes 1/2.
Can it show mixed numbers?
Yes — improper fractions like 7/3 are also shown as mixed numbers (2 1/3).
Why can’t denominators be zero?
Division by zero is undefined in mathematics, so any fraction with a zero denominator is rejected.
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