Fractions Learn to love them!!!.

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Presentation transcript:

Fractions Learn to love them!!!

**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

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

Which of these fractions are equivalent?

Adding Fractions Algorithm Find a common denominator Add the numerators Keep the denominator Reduce

Subtracting Fractions Algorithm Find a common denominator Subtract the numerators Keep the denominator Reduce

Multiplying Fractions

Multiplying Fractions Algorithm Multiply the numerators Multiply the denominators Reduce

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?

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?

Count up each half & you get 8 pieces of cookie

Dividing Fractions Algorithm Flip the second fraction & change the sign to multiplication (do this in one step!) Multiply the fractions Reduce

Practice Questions Do text p16-18 #5abc,7abc,8,9,10, 11, 13c,d P28 #1, 2, 7ace, 10ace, 13