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Online Basic Fractions Calculator
Add fractions and get the exact answer as a reduced fraction and mixed number — handles any number of fractions and copies in one click.
Answer
10
3
=
3
1
3
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What Is This Tool?
The Fractions Calculator adds a list of fractions and gives you the exact total. You enter fractions separated by plus signs, click Calculate, and see the answer reduced to lowest terms — shown as an improper fraction and, when it applies, as a mixed number. For example, adding 5/12 eight times gives 10/3, or 3 1/3. You can subtract by entering a negative numerator, and copy the result with one click.
How to Use This Tool?
- Enter your fractions separated by plus signs, like 1/2 + 1/3.
- To subtract, enter a negative numerator, such as + -1/4.
- Click the Calculate button to see the total.
- Click the copy icon to copy the result to your clipboard.
Key Features
- Adds any number of fractions in one calculation.
- Shows the answer as an improper fraction and a mixed number.
- Reduces every result to lowest terms.
- Supports subtraction by entering a negative numerator.
- Includes a one-click copy button for the result.
Examples
- 5/12 added eight times equals 10/3, or 3 1/3.
- 1/2 + 1/3 equals 5/6.
- 3/4 + 1/4 equals 1.
- 1/2 + -1/4 equals 1/4.
Common Use Cases
- Adding fractional measurements in cooking or woodworking.
- Combining portions or shares written as fractions.
- Checking fraction homework answers.
- Summing fractional amounts of time or money.
- Teaching or practicing how to add and reduce fractions.
Tips & Best Practices
- Separate each fraction with a plus sign.
- Write each fraction as numerator/denominator, like 5/12.
- Subtract by putting a minus sign on the numerator, as in -1/4.
- Remember the answer is always reduced to lowest terms.
- Copy the result directly to avoid transcription mistakes.
Limitations
- Fractions must be separated with plus signs; subtraction uses negative numerators.
- Each value must be written as a fraction, not a decimal or whole number.
- Denominators must be positive whole numbers, so a zero denominator is rejected.
- It adds fractions but does not multiply or divide them.
Frequently Asked Questions
- How many fractions can I add?
- As many as you like, each separated by a plus sign.
- Can I subtract fractions?
- Yes. Enter the fraction with a negative numerator, such as + -1/4, to subtract it.
- What's the difference between the two answers shown?
- One is the improper fraction and the other is the same value written as a mixed number.
- Is the answer simplified?
- Yes. The result is always reduced to its lowest terms.
Key Terminology
- Fraction
- A number written as a numerator over a denominator, such as 5/12.
- Numerator
- The top number of a fraction, showing how many parts are counted.
- Denominator
- The bottom number of a fraction, showing how many equal parts make a whole.
- Improper fraction
- A fraction whose numerator is greater than or equal to its denominator, such as 10/3.
- Mixed number
- A whole number combined with a proper fraction, such as 3 1/3.