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.