Tuesday 12 September 2017

Tuesday, September 12

Adding, Subtracting, Multiplying and Dividing Rational Numbers

  • When adding and subtracting, you need to get a common denominator, then + or - numerators
  • Always look to see if you need to reduce your fraction

  • When multiplying, multiply numerators and denominators
  • Always look to see if you need to reduce your fraction
  • If you can reduce the fractions BEFORE multiplying, it helps make your answer easier to reduce

  • When dividing, take the reciprocal of the second fraction and then multiply (flip and multiply)
  • Always look to see if you need to reduce your fraction
HOMEWORK:  Both sides of the white sheet ( adding, subtracting and dividing) and either side of the green sheet (multiplying)

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