How to Add and Subtract Fractions Step by Step
Like and unlike denominators, the least common denominator, and negative differences.
Guides
Fraction Guides
Five original articles with worked examples and links to the working calculators.
How to Multiply and Divide Fractions
Products, cross-cancellation, reciprocals, and zero divisors.
How to Simplify Fractions Using the Greatest Common Divisor
The Euclidean algorithm and 24/36 as a worked reduction.
Mixed Numbers and Improper Fractions Explained
Whole parts, remainders, and negative mixed numbers.
How to Convert Decimals to Fractions
Place value, powers of ten, and why repeating decimals are not finite.