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Result
Method
Each mixed number is first converted to an improper fraction. For example, 2 3/4 becomes 11/4. The selected fraction operation is then performed exactly, reduced by GCD, and converted back to a mixed-number display.
Worked example
2 3/4 + 1 1/2 = 11/4 + 3/2 = 11/4 + 6/4 = 17/4 = 4 1/4.
Limits and assumptions
Fractional numerators must have smaller magnitude than their positive denominators. A negative whole number applies the sign to the complete mixed value: −2 3/4 means −11/4. Components are limited to 5,000 digits.
Exactness and privacy
Supported integer calculations use BigInt and validated text, not floating-point Number conversion. Results are rendered as inert text. This educational calculator does not send calculation values to a server or make professional decisions for you.