Modeling Multiplication of Fractions

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Presentation transcript:

Modeling Multiplication of Fractions SOL 6.4

REDUCE!!! 2 3 1 6 24 4 4 6 Reading the model… Count the number of rows that are shaded. This is the numerator of the first fraction! Count the rows. This is the denominator of the first fraction! Count the columns. This is the denominator of your second fraction! 1 1 2 3 4 5 6 1 2 7 8 Count the number of columns that are shaded. This is the numerator of your second fraction. 1 2 9 10 11 12 Count the number of boxes that are double shaded. This is the numerator of your product. Count the number of boxes you have in all. This is the denominator of your product. 18 13 3 4 14 15 16 3 2 17 5 19 20 21 22 23 24 3 4 6 REDUCE!!! 2 3 1 6 1 1 2 2 3 4 5 6 24 4 4 6

Find the multiplication problem and the answer modeled below. 1 2 2 15 5 3

Find the multiplication problem and the answer modeled below. 1 5 Reduced! 1 2 2 10 2 5

Find the multiplication problem and the answer modeled below. 4 1 4 15 5 3

Find the multiplication problem and the answer modeled below. 1 14 Reduced! Reduced! 2 1 2 28 7 4

Find the multiplication problem and the answer modeled below. 3 25 Reduced! 3 2 6 50 10 5

Find the multiplication problem and the answer modeled below. 2 1 2 27 9 3

Find the multiplication problem and the answer modeled below. 1 1 1 4 2 2

Find the multiplication problem and the answer modeled below. 1 10 Reduced! 3 1 3 30 5 6

Find the multiplication problem and the answer modeled below. 1 2 3 49 7 7

Find the multiplication problem and the answer modeled below. 3 1 3 20 10 2