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Transcript of FRACTIONS
Definition: A part of the whole.
Pieces of a Chocolate Bar
How many pieces of chocolate do you see?
1/4 = 0.25 = 25%
2/4= 1/2 = 0.50 = 50%
¾ = 0.75 = 75%
1 = 1.00 = 100%
Write these down and memorize them!
6 = Whole
6 pieces makes up 1 whole chocolate bar
If Miss Samantha eats one piece of the chocolate bar and wants to represent it as a fraction, how should she write it?
1 = Part
6 = Whole
If Miss Samantha eats 1 piece of the chocolate bar
Mrs McKergow eats 2 pieces of the chocolate bar
How do we calculate how much we ate?
1 2 3
6 6 6
When the denominator is the same, you add the numerators and leave the denominator alone.
Is there another way to write ?
They have the same value, even though they may look different.
1 2 3
2 4 6
With different denominators
How much pizza has been eaten?
How can we add these fractions if they don't have the same denominator?
We need to find the common denominator for
2 and 6
We need to make the denominators the same!
Let's make a new pizza with 12 pieces!
We're ready to start!
Turn to page 354.
8 4 2
12 6 3