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Fractions Learn to love them!!!
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**Fractions are a part of a whole**
The denominator represents the number of pieces the whole is divided into The numerator represents the number of pieces taken from the whole
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This pie is divided into 3 parts:. represents the pie eaten
This pie is divided into 3 parts: represents the pie eaten represents the pie to be eaten
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Which of these fractions are equivalent?
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Adding Fractions Algorithm
Find a common denominator Add the numerators Keep the denominator Reduce
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Subtracting Fractions Algorithm
Find a common denominator Subtract the numerators Keep the denominator Reduce
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Multiplying Fractions
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Multiplying Fractions Algorithm
Multiply the numerators Multiply the denominators Reduce
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Dividing Fractions 1. Consider the following:
If you have 4 cookies and must divide them between 2 people …. how many cookies does each person get?
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2. Consider the following:
You have 4 cookies and you divide each of them in half (2 pieces). How many people could get a piece of cookie?
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Count up each half & you get 8 pieces of cookie
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Dividing Fractions Algorithm
Flip the second fraction & change the sign to multiplication (do this in one step!) Multiply the fractions Reduce
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Practice Questions Do text p16-18 #5abc,7abc,8,9,10, 11, 13c,d
P28 #1, 2, 7ace, 10ace, 13
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