Fraction Calculator

Find the least common denominator (LCD), convert both fractions to equivalent fractions with the LCD, then add the numerators and keep the denominator.

Multiply the numerators together and the denominators together: (a/b) × (c/d) = (a×c)/(b×d). Then simplify if possible.

Multiply the whole number by the denominator, add the numerator, and put the result over the original denominator. Example: 2⅓ = (2×3+1)/3 = 7/3.

The Fraction Calculator is an online tool that lets you add, subtract, multiply, and divide fractions with step-by-step solutions and simplification. It is part of NexTool's collection of free tools designed to help you work faster and more efficiently.

Using the Fraction Calculator is simple: visit the tool page, enter your data or input into the provided fields, and get instant results. Follow the controls on the page. Some functions require sign-in or a paid plan; see Pricing for limits.

The Free plan includes 10 tool uses per day. Some features require an account or a paid plan. Check the controls on the tool page and Pricing for the applicable limits.

The Fraction Calculator returns results based on the inputs and the tool methodology. Check assumptions, units and source dates. Treat projections as estimates. For critical decisions, always consult a qualified professional.

Yes, the Fraction Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. Simply open NexTool in your mobile browser and navigate to the tool — no app download required.