Math6 min read
Decimal to Fraction: Convert in Three Steps
Turn any decimal into a fraction by writing it over a power of 10 and simplifying, with a chart and a method for recurring decimals like 0.333…
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14 articles
- Math7 min read
Fraction Calculator: Add, Subtract, Multiply, Divide
Add, subtract, multiply and divide fractions by hand with one rule for each, a worked example, a comparison table and a recipe-scaling case.
- Math6 min read
Fraction to Decimal: Divide, Round and Check
Convert a fraction to a decimal by dividing the numerator by the denominator, and learn which fractions terminate, which repeat and how to round.
- Math6 min read
How to Calculate Percentage Change, Step by Step
Calculate percentage change with (new − old) ÷ old × 100. See a 15% rise and a 20% fall worked out, why points differ from percent, and what to do at zero.
- Math7 min read
Mixed Fraction Calculator: Convert and Calculate
Convert mixed fractions to improper fractions and back, then add, subtract, multiply and divide mixed numbers with worked examples and a chart.
- Math6 min read
Percentage Calculator: 4 Ways to Find a Percent
A percentage calculator answers four questions: X% of a number, what percent one number is of another, the whole from a part, and a discounted price.
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