Fraction Vocabulary

Fraction – A way of representing part of a whole or part of a group. Numerator – The number on top that tells how many equal parts are described in the fraction. Denominator – The quantity below the line in a fraction. It tells the number of equal parts into which the whole is divided.

Fractions that name the same number or amount. Equivalent Fractions Fractions that name the same number or amount. 3 6 4 8 Simplest Form A fraction that has 1 as the greatest common factor of the numerator and denominator. The numerator and denominator are as low as they can go.

Greatest Common Factor Also known as GCF The largest number that divides evenly into two or more numbers. Used when simplifying fractions

Least Common Denominator The least common multiple of the denominators of two or more fractions. Ex: 4/8 and 5/6 Multiples of 8: 8, 16, 24, 32, 40, 48, 56 Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48 The Least Common Denominator would be 24.

Number that contains a whole number and a fraction. Mixed Number Number that contains a whole number and a fraction. Ex: 3 ½ Improper Fraction Fraction in which the numerator is bigger than the denominator. You must DIVIDE to make it into a mixed number. EX: 25 4