Fractions
- A-Sequence
- Accidental Cancellation
- Anomalous Cancellation
- Archimedes' Axiom
- Archimedes' Lemma
- Archimedes' Postulate
- B_2-Sequence
- Binary Remainder Method
- Calcus
- Calkin-Wilf Tree
- Common Fraction
- Complex Fraction
- Continued Fraction Unit Fraction Algorithm
- Denominator
- Directly Proportional
- Egyptian Fraction
- Egyptian Number
- Egyptian Unit Fraction
- Erdős-Straus Conjecture
- Erdős-Turán Conjecture
- Eye of Horus Fraction
- Farey Fraction
- Farey Sequence
- Ford Circle
- Fraction
- FRACTRAN
- Golden Rule
- Half
- Horus-Eye Fraction
- Improper Fraction
- Inversely Proportional
- Irreducible Fraction
- Least Common Denominator
- Mediant
- Midy's Theorem
- Minkowski's Question Mark Function
- Mixed Fraction
- Numerator
- Pandigital Fraction
- Percent
- Percentage Point
- Permil
- Proper Fraction
- Proportional
- Pythagorean Fraction
- Quarter
- Ratio
- Reduced Fraction
- Reducible Fraction
- Reverse Greedy Algorithm
- Ring of Fractions
- Rule of Three
- Scruple
- Siegel's Paradox
- Small Multiple Method
- Stern-Brocot Tree
- Total Ring of Fractions
- Uncia
- Unit Fraction