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Prealgebra 2e

Key Terms

Prealgebra 2eKey Terms

Key Terms

complex fraction
A complex fraction is a fraction in which the numerator or the denominator contains a fraction.
equivalent fractions
Equivalent fractions are two or more fractions that have the same value.
fraction
A fraction is written abab. In a fraction, aa is the numerator and bb is the denominator. A fraction represents parts of a whole. The denominator bb is the number of equal parts the whole has been divided into, and the numerator aa indicates how many parts are included.
least common denominator (LCD)
The least common denominator (LCD) of two fractions is the least common multiple (LCM) of their denominators.
mixed number
A mixed number consists of a whole number aa and a fraction bcbc where c≠0c≠0. It is written as abcabc, where c≠0c≠0.
proper and improper fractions
The fraction abab is proper if a<ba<b and improper if a≥ba≥b.
reciprocal
The reciprocal of the fraction abab is baba where a≠0a≠0 and b≠0b≠0.
simplified fraction
A fraction is considered simplified if there are no common factors in the numerator and denominator.
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