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Modelling Multiplication of Fractions

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Presentation on theme: "Modelling Multiplication of Fractions"β€” Presentation transcript:

1 Modelling Multiplication of Fractions

2 Model Fractions Multiply by a Whole #
4 x 1 6 4 groups of 1 6 = = 4 6 Γ· 2 2 = 𝟐 πŸ‘ = Reduce (simplify)

3 4 x 2 3 Model Fractions Multiply by a Whole # 4 groups of 2 3 =
2 and 2/3 circles are now shaded = =

4 Model Fractions Multiply by a Whole # using a number line
6 x 4 5 6 groups of 4 5 = 4 4 5

5 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‘…π‘’π‘šπ‘œπ‘£π‘’ π‘›π‘œπ‘›βˆ’π‘œπ‘£π‘’π‘Ÿπ‘™π‘Žπ‘ π‘ β„Žπ‘Žπ‘‘π‘–π‘›π‘” Fill 4 5 of the columns Fill 2 3 of the π‘Ÿπ‘œπ‘€π‘  The entire rectangle is 15 units and the shaded covers 8 units; therefore 8 15

6 Multiply Models using tiles
β€œTwo-thirds of six-eighths” 6 tiles out of eight 2/3 of these 6 Determine what fraction of the whole is now present

7 Multiply Models using tiles
β€œOne-half of five-sixths” 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

8 Classwork Page #6, 8, 14 Page 113 #8 #13


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