Arithmetic and Fractions Calculators
These calculators cover the everyday number work that most other maths builds on: working with parts of a whole, comparing amounts, and finding what two numbers have in common. They are the ones to reach for with shopping discounts, test scores, recipes, schoolwork on fractions, and timing problems.
Which calculator do you need?
| Calculator | Use it when |
|---|---|
| Percentage Calculator | You need a percent of a number, a part as a percent of a whole, or a percent change. |
| Fraction Calculator | You need to add, subtract, multiply or divide fractions and reduce the answer. |
| GCF and LCM Calculator | You need a common factor to simplify, or a common multiple for a shared denominator or timing problem. |
Every arithmetic and fractions calculator shows the formula and the working, and is checked against hand-worked examples. See how we verify our maths.