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Fraction Vocabulary

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**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.

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**Fractions that name the same number or amount.**

Equivalent Fractions Fractions that name the same number or amount. 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.

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**Greatest Common Factor**

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

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**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.

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**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

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