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Multiplying Fractions by Fractions
19 minutes ago by
Deborah LaCrosse
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  • Slide 1
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    Multiplying Fractions by Fractions

    Body text
  • Slide 2
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    Multiplying Fractions with a Model

    The overlapping area is the answer. So in this problem,

     13×35=315 or 15\frac{1}{3}\times\frac{3}{5}=\frac{3}{15}\ or\ \frac{1}{5}  

  • Question 3
    30 seconds
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    Q.

    Which problem does the model represent?

    answer choices

    15×26\frac{1}{5}\times\frac{2}{6}

    13×25\frac{1}{3}\times\frac{2}{5}

    25×15\frac{2}{5}\times\frac{1}{5}

    25×25\frac{2}{5}\times\frac{2}{5}

  • Question 4
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    Q.

    Which model correctly shows the problem  26×15\frac{2}{6}\times\frac{1}{5}  ?

    answer choices
  • Question 5
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    Q. George has 1/3 pan of brownies. He eats 1/4 of them. What fraction did George eat?
    answer choices
    1/7
    1/4
    1/3
    1/12
  • Question 6
    300 seconds
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    Q.

    Which product is represented by the model?

    answer choices

    2/3 of 3/4

    6/12 of 2/3

    1/2 of 3/4

    1/12 of 2/3

  • Question 7
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    Q.

    What problem is represented by the model?

    answer choices

    1/2 x 3/10

    3/5 x 9/50

    3/5 x 3/10

    2/5 x 3/5

  • Question 8
    300 seconds
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    Q.

    Use the model to find the product.

    answer choices

    35/1

    2/12

    1/6

    1/35

  • Question 9
    120 seconds
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    Q.

    Which fraction model shows 2/5 x 2/3?

    answer choices
  • Slide 10
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    Multiplying Fractions by Fractions Without Models

    • Multiply the numerators.

    • Multiply the denominators.

    • Simplify if needed.

  • Question 11
    300 seconds
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    Q. George has 1/3 pan of brownies. He eats 1/4 of them. What fraction did George eat?
    answer choices
    1/7
    1/4
    1/3
    1/12
  • Question 12
    120 seconds
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    Q.

    Mimi is baking cookies for her grandson. The recipe calls for ⅔ cup of chocolate chips and she wants to make half of a batch. Which of the following statements is true?

    answer choices

    She will use ⅔ cup of chocolate chips.

    She will use more than ⅔ cup of chocolate chips.

    She will use less than ⅔ cup of chocolate chips.

    She will double the amount of chocolate chips.

  • Question 13
    60 seconds
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    Q.

    Multiply these fractions: remember to simplify!

    answer choices

    1/5

    10/18

    6/30

    0

  • Question 14
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    Q.

    Find the product:

    answer choices

    6/28

    9/28

    6/11

    12/21

  • Question 15
    120 seconds
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    Q. There are 28 students in a math class. ⁴⁄₇ of the students were boys. How many boys were in the math class?
    answer choices
    16 boys
    12 girls
    14 girls
    12 boys
  • Question 16
    120 seconds
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    Q.

    Bella has 32 songs on her iphone. Three-eighths of those songs are by Justin Timberlake. How many Justin Timberlake songs does Bella have on her iphone?

    answer choices

    12 songs

    15 songs

    9 songs

    18 songs

  • Question 17
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    Q.
    answer choices
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