
Denominator
The number below the line in a fraction. Denotes how many parts the whole is divided into.

Equivalent
Two fractions that express the same part of a whole. There is a number by which both the numerator and denominator of one fraction can be multiplied or divided to yield an equivalent fraction. 1/4, 2/8, and 3/12 are all equivalent fractions.

Fraction
Describes part of a whole. 3/4, 1/6, and 19/4 are all examples of fractions.

Improper Fraction
A fraction whose numerator is equal to or greater than its denominator.

Least Common Denominator
The least common multiple of the denominators of two or more fractions. That is, the lowest number which is a multiple of both denominators.

Lowest Terms
A fraction whose numerator and denominator have no common factors is in lowest terms.

Mixed Number
A number composed of a whole number and a fraction.

Numerator
The number above the line in a fraction. Denotes the number of parts out of the whole that are being taken.

Proper Fraction
A fraction whose numerator is smaller than its denominator.

Reduced
Written in lowest terms; that is, written as a fraction whose numerator and denominator have no common factors.

Repeating Decimals
Decimals that endlessly repeat one number or a group of numbers.

Terminating Decimals
Decimals that do not continue after a certain place (that continue in an endless string of zeros).