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Working With Common Denominators

Working With Common Denominators. By: Larry Wilson. What is a Denominator? . The bottom part of the fraction represents the total parts of the whole. 6. 6. The Numerator. The top part of the Fraction represents the part that you have. 6. 6. The Numerator. 5. 6.

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Working With Common Denominators

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  1. Working With Common Denominators By: Larry Wilson

  2. What is a Denominator? The bottom part of the fraction represents the total parts of the whole 6 6

  3. The Numerator The top part of the Fraction represents the part that you have 6 6

  4. The Numerator 5 6

  5. What is a common denominator? Common denominators are the possible ways that fractions can be used to add or subtract unlike numbers These fractions can only be Added or Subtracted by finding a common language (Common Denominator) or Common multiple

  6. For Example 1 A Common Denominator for 3 & 6 1 Find the lowest number that both will divide into 3 2 + 6 It is 6 Both 3 & 6 Will divide Into 6

  7. Some Suggestions for Finding CommonDenominators 1 Find the lowest number that both will divide into • If both numbers are even try 2 • or 4 3 If both are odd try 3 or 6 4 If both are even or both are odd multiply them together

  8. Now convert the old denominators to the New--6 1 3 into 6 X 1 =2 3 6 2 2 + So the Equal Fraction Will be? 6 6 2 6

  9. Now Add NumeratorsKeep the New Denominator 2 1 3 6 2 2 + 6 6 4 Yes! 6

  10. Now-Look in the TextPage 88Example #1 7 Again 12 is the smallest Number that the denominators Will Divide into 12 2 + 3

  11. So 3 into 12 X 2 equals-? 7 7 12 12 2 8 So 8 is your numerator + 3 12

  12. Now Solve 7 7 12 12 8 2 + 3 12 15 = Your Answer 12

  13. Now Try One Look On Page 90Solve ProblemPicture #1

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