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Published byIbrahim Rodney Modified over 3 years ago

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Working With Common Denominators By: Larry Wilson

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

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

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The Numerator 5 6

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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

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

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Some Suggestions for Finding Common Denominators 1 Find the lowest number that both will divide into 2If 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

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

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Now Add Numerators Keep the New Denominator 1 3 2 6 + 6 6 2 2 4 6 Yes!

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

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

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

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Now Try One Look On Page 90 Solve Problem Picture #1

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ADDING FRACTIONS. Adding Fractions How to do…… 1.You have to get the bottoms (denominators) the same 2.To get the bottoms the same you find the biggest.

ADDING FRACTIONS. Adding Fractions How to do…… 1.You have to get the bottoms (denominators) the same 2.To get the bottoms the same you find the biggest.

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