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Quickname: 6408

Suitable for grades: Grade 6, Grade 7

Adding and subtracting fractions

A number of fractions has to be added or subtracted in a consecutive way. The number of problems and the number of fractions for each problem is selectable.

The fractions may be unlike quantities, in which case they have to be converted to like quantities first. The problem may be set to produce only chains of like quantities - or only unlike quantities.

The numerator and denominator of each fraction is taken from a preset number range.

The fractions' sign may be chosen to be positive (for addition) only, negative (for subtraction) only, or chosen randomly.

Improper fractions can be allowed, disallowed or enforced. In case they may occur, it can be chosen whether they will be output as improper fractions or mixed numbers.

Topics: Arithmetic, Basic-Arith, Rational N

Tags: Addition, Fraction, Subtraction

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Parameter | Possible values |
---|---|

Number of problems | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 |

Plus/Minus | Mixed, Plus, Minus |

Number range | 20, 30, 40, 50, 100, 200, 500, 1000, 10000, 100000 |

Number of fractions | 1, 2, 3, 4 |

Improper fractions | No, Yes, as a fraction, Yes, as a mixed number |

All like quantities | Never, May, Always |

Remark | Description | Name and direct link |
---|---|---|

like quantities are required for the addition and subtraction of fractions. | Convert multiple fractions to like quantities | Convert to like fractions |

with the result given, a summand is blanked out and to be filled in correctly | In a sum term of fractions, blanks have to be filled | Fractions add sub fill in the blanks |

Relevance | Name | Description | Quickname | Example |
---|---|---|---|---|

**** | Dividing fractions by whole numbers | A fraction has to be divided by a whole number. | 5220 | |

**** | Missing elements in unlike fractions | In unlike fractions of the same value, numerators or denominators have to be filled in. | 6652 | |

**** | Fractions order relations | Insert the correct relational symbol between two fractions | 1433 | |

**** | Multiply fractions by whole numbers | A fraction has to multiplied by a whole number. | 7650 |

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