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Prealgebra 2e

# Key Terms

Prealgebra 2eKey Terms

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### 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 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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