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# Topics 9 and 10

### Fractions

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

halves | Two equal parts of a whole. |

thirds | Three equal parts of a whole. |

fourths | Four equal parts of a whole. |

fifths | Five equal parts of a whole. |

sixths | Six equal parts of a whole. |

eights | Eight equal parts of a whole. |

tenths | Ten equal parts of a whole. |

twelfths | Twelve equal parts of a whole. |

fraction | A symbol that names a part of a whole, a part of a set, or location on a number line. Examples: 1/2, 2/3 |

numerator | The number above the fraction bar in a fraction; it tells how many equal parts. |

denominator | The number below the fraction bar in a fraction; it tells the total number of equal parts. |

unit fraction | A fraction with a numberator of 1. Example: 1/2 |

benchmark fractions | Commonly used fractions such as 1/4, 1/3, 1/2, 2/3, and 3/4 |

mixed number | A number with a whole number part and a fraction part. Example: 2 and 3/4 |

equivalent fractions | Fractions that name the same number. |

simplest form | A fraction with a numerator and denominator that cannot be divided by the same divisor, except 1. |

Created by:
Third Graders