Flashcards : Understanding Rational Numbers — 10 cartes

Numbers expressed as fractions $\frac{p}{q}$ with integers $p,q$, $q \neq 0$.

Numbers as fractions with integers numerator and denominator, denominator ≠ 0.

Divide numerator and denominator by their GCD.

Cross-multiplied: p×s = r×q.

Cross-multiplied: $p \times s = r \times q$.

Divide numerator and denominator by GCD.

Includes integers and fractions.

Between any two rationals, another exists.

Use common denominator: ps + rq over qs.

Precise ratios and divisions.