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Modelling Multiplication of Fractions
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Model Fractions Multiply by a Whole #
4 x 1 6 4 groups of 1 6 = = 4 6 Γ· 2 2 = π π = Reduce (simplify)
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4 x 2 3 Model Fractions Multiply by a Whole # 4 groups of 2 3 =
2 and 2/3 circles are now shaded = =
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Model Fractions Multiply by a Whole # using a number line
6 x 4 5 6 groups of 4 5 = 4 4 5
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Modelling Multiplying Fraction
2 3 x 4 5 draw a 5 by 3 rectangle with 15 total units. Label the columns and rows according to fractions π
ππππ£π πππβππ£πππππ π βπππππ Fill 4 5 of the columns Fill 2 3 of the πππ€π The entire rectangle is 15 units and the shaded covers 8 units; therefore 8 15
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Multiply Models using tiles
βTwo-thirds of six-eighthsβ 6 tiles out of eight 2/3 of these 6 Determine what fraction of the whole is now present
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Multiply Models using tiles
βOne-half of five-sixthsβ 5 tiles out of six 1/2 of these 5 Determine what fraction of the whole is now present Fractions should never have decimals, so multiply top and bottom by 2. x 2 2 = 5 12
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Classwork Page #6, 8, 14 Page 113 #8 #13
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