Question
How do you add fractions with different denominators?
You usually convert both fractions to a common denominator, add the numerators, and then simplify the final fraction if possible.
Math
Use OmniCalc's fraction calculator to add, subtract, multiply, divide, and simplify fractions without doing the denominator work by hand.
Fraction calculator
Enter two fractions to simplify them, find a common denominator, and see the exact result as a fraction, mixed number, and decimal.
Simplified first fraction: 1/2
Simplified second fraction: 3/4
Why this result matters
A practical fraction tool that handles arithmetic, simplification, mixed numbers, and decimal checks in one place. Use the tool above to enter a few clear inputs and get a practical answer you can use right away.
This fraction calculator is built for students, parents, and anyone who needs quick fraction arithmetic without making denominator mistakes. It helps you simplify fractions, compare equivalent forms, and see the result as an exact fraction, a mixed number, and a decimal.
Formula and method
Fraction addition and subtraction usually require a common denominator, while multiplication and division combine numerators and denominators directly before simplifying. This calculator reduces the final fraction to lowest terms and also shows equivalent fractions for checking your work.
Example
If you need to add one-half and three-quarters for homework, measurements, or recipe adjustments, this calculator shows the common denominator, the exact fraction result, the mixed number form, and the decimal equivalent.
FAQ
Short answers to the questions people often ask before or after using the tool.
Question
You usually convert both fractions to a common denominator, add the numerators, and then simplify the final fraction if possible.
Question
Yes. The result is reduced to lowest terms when the fraction is valid, and the calculator also shows mixed-number and decimal views for easier interpretation.
Question
A denominator cannot be zero, so the calculator flags that setup as invalid instead of returning a misleading answer.
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