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# Fraction Vocabulary

Term | Definition |
---|---|

fraction bar | a horizontal bar that actually means divide. 2/3 is 2 divided by 3 |

Common multiples | a multiple that both the numerator and denominator have in common. multiples of 3 are 3, 6, 9.. multiples of 6 are 6, 12, 18 so common multiple is 6 |

prime number | a number with no factors other than 1 and the number itself |

composite numbers | have multiple factors. Any number not prime |

simplest form | when the greatest common factor of numerator and denominator is 1. 4/8 can reduce to 1/2 |

Lowest Common Denominator | the smallest multiple that the numerator and denominator have in common |

lowest terms | a fraction where the numerator and denominator have no common factor greater than 1 |

simplify | to express a fraction in simplest form (lowest terms) the greatest common factor is 1 |

multiple | like count by...multiples of 4 are 4, 8 12, 16 |

reducing a fraction | to put in lowest terms so the greatest common factor of numerator and denominator is 1 |

equivalent fraction | 2 fractions that name the same amount. 1/2 and 2/4 |

fraction | a part of a whole |

numerator | the top number in a fraction. Tells what portion of the fraction you have |

denominator | the bottom part of a fraction. Tells how many parts the whole is divided into. |

improper fraction | fraction that is more than 1. numeratorr is bigger than the denominator. |

common denominator | a number that is a multiple of both the numerator and denominator |

the whole number one (1) | 2/2 3/3 12/12 |

mixed number | contains a whole number and a fraction 6 3/5 |

ECD - Easiest Common Denominator | multiply the denominators and use the product for the common denominator. |

Factor | numbers multiplied together to make another number |

GCF Greatest Common Factor | the largest factor that both numbers share |