Operation | Comments | ||||
---|---|---|---|---|---|

Adding Fractions | Denominators Must match | ||||

Subtracting Fractions | Denominators Must match | ||||

Multiplying Fractions | Multiply the top numerators to get the answer numerator and the bottom denominators to get the answer denominator. | ||||

Dividing Fractions | Multiply the top fraction by the reciprocal of the bottom fraction. a/b ÷ c/d = a/b x d/c | ||||

Mixed Numbers to Fractions: |
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Fractions to Mixed Numbers | c/b where c is greater than b is INT(c/b) & (c - b)/b |

Follow the

x

5

Check to see if a number is a square, i.e., √81 = 9

For numbers that do not have a square, i.e., √40, we find the highest square in it's factors.40 = 20 x 2, 10 x

Prime Factorization: Factor a number into a product of primes, i.e., 40 = 2 x 2 x 2 x 5

Prime Power Decomposition: Combine common prime numbers from the Prime factorization, i.e., 40 = 2

a | |

b |

= |

c |

d |

You can cross multiply to get a x d = b x c