Numbers & arithmetic
Percentages, fractions, ratios, averages and roots.
The sums you already know how to do and would rather not do twice to check. Each one shows its working.
- Average Paste a list of numbers and get every kind of average at once.
- Decimal to fraction Any terminating decimal as a fraction in lowest terms.
- Exponents Any number to any power, with its squares, cubes and roots.
- Fractions Add, subtract, multiply or divide two fractions, simplified.
- GCF & LCM The greatest common factor and lowest common multiple of two numbers.
- Percentage What is X% of Y, X is what percent of Y, and the change between two numbers.
- Ratio Simplify a ratio, or scale one up to find the missing value.