Unit 8 Math Vocabulary

Common Factor: any common factor of two or more numbers.

Decimal: a number with one or more digits to the right of a decimal point.  Decimal is used as another                  name for decimal fraction.

Denominator: the number written below the line in a fraction.  It tells how many equal parts are in the                           whole.

Dividend: a quantity to be divided.

Divisor: the quantity by which another quantity is to be divided.

Equation: a statement that two mathematical expressions are equal.

Equivalent Fractions: fractions that have the same value.

Fraction: a way to describe a part of a whole or a part of a group by using equal parts.

Fraction Bar: a horizontal bar that separates the numerator and denominator.

Fraction Greater Than 1: a fraction with a numerator greater than its denominator.

Fraction Less Than 1: a fraction with a numerator less than its denominator.

Mixed Number: a number with an integer (number) and a fraction part.

Number line: a diagram that represents numbers as points on a line.

Numerator: the number written above the line in a fraction.  It tells how many equal parts are                                     described in the fraction.

Prime Number: a whole number greater than 0 that has exactly two different factors, 1 and itself.

Quotient: the result of the division of one quantity by another.

Simplest Form: a fraction is in simplest form when the greatest common factor of the numerator and                               denominator is 1.

Simplify: to express a fraction in simplest form.

Unit Fraction: a fraction that has 1 as its numerator.  A unit fraction names 1 equal part of a whole.

Whole Numbers: whole numbers are 0 and the counting numbers 1,2,3,4,5,6, and so on.