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Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
Oct. 27 Fractions(add/subtr/multiply/mixed/improper)
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Oct. 27 Fractions(add/subtr/multiply/mixed/improper)

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  • 1. 1
  • 2. 2
  • 3. Operations on Fractions The Addition and Subtraction of Fractions Remember 1. Change the denominator to a common number, through  multiplication. 2. Make sure you multiply the numerators by the same number  that you did with the denominators. 3. Apply addition or subtraction to the numerators 4. Be Sure to keep the denominator the same 3
  • 4. When adding and subtracting fractions you must also consider Subtracting a negative The numerator will move to the right on the number line and become  larger ­ (­) Adding a negative The numerator will move to the left on the number line and  become smaller + (­) 4
  • 5. Ex. 1   ­3 ­ 2 5 5
  • 6. More Examples      8      2 a)  9     15      3     6      5 b) 10   8      4 6
  • 7. Oct. 26 Assignment page 67  question 1 page 68 questions ­ 5 (a,c,e,f)   ­ 6 (a ­ d) 7
  • 8. What is a mixed number? It is a number that includes both a whole number and a fraction!! You bought 4 large pizzas and each pizza has 8 pieces. Your friend  ate  3 pieces of one of the pizzas before you sat down to eat. How many pizzas are left? Mixed  Improper  Represetation Representation 8
  • 9. Back and Forth  Between Mixed and Improper Mixed to Improper Multiply the whole number by the denominator of  the fraction.  Add it to the numerator of the fraction. Improper to Mixed Determine how many whole times the numerator goes  into the denominator, that is your whole number.  Find out how many parts the whole number makes up  and subtract them from the numerator. 9
  • 10. Methods for Adding and Subtracting  Mixed and Improper Fractions Method 1: Change the fractions to improper once you have performed your operations  you can turn the answer back to mixed if you  want Method 2: Combine integers with the integers,  and the fractions with fractions. After you can simplify the answer as required 10
  • 11. 11
  • 12. 1 You can change any whole number into a fraction True   False   12
  • 13. More examples required? 13

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