Do fraction maths fast with this clean, professional calculator. Enter whole numbers, proper or improper fractions, mixed numbers, or decimals, then choose +, −, × or ÷ to get an instant, simplified answer. Results can be shown as an improper fraction, a mixed number or a decimal, and you’ll see clear working steps. The interface is distraction-free, mobile-friendly and keyboard-ready, with optional focus mode, fullscreen and an easy mode on phones for larger buttons. Use it for homework, teaching, recipes, budgeting or any time you need accurate fraction calculations without installing an app.
Q: How do you add fractions with different denominators?
Find the least common denominator, convert each fraction, add the numerators and keep the denominator, then simplify.
Q: What is the simplest form of a fraction?
It’s when the numerator and denominator share no common factor except 1.
Q: How do I convert a mixed number to an improper fraction?
Multiply the whole number by the denominator, add the numerator, and place the total over the original denominator.
Q: How do you divide fractions?
Flip the second fraction (take the reciprocal) and multiply across, then simplify.
Q: Can I use decimals?
Yes. Enter decimals directly; the calculator converts and simplifies the result. You can also view the final answer as a decimal.
Q: Does it support negatives and large numbers?
Yes, it works with negative values and large integers, and still reduces to lowest terms.
Q: Why do I get “Error”?
Usually due to division by zero or an incomplete/invalid input (e.g., just “-” or “.”). Correct the entry and press = again.
Q: Is this calculator free and mobile-friendly?
Yes. It’s free, fast, and designed for touch screens and keyboards, with fullscreen and an optional easy mode on mobile.