Grade 6 Mathematics · Unit 6: Numerical and Algebraic ExpressionsStandard 6.NOS.1

Lesson 6.96.9 · Part II

Apply Day · Set BSecond form · new problems, same idea

Mastery check☐ Exceeds☐ Meets target☐ Needs practice
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Learning target I can explain what dividing a whole number by a fraction means — how many pieces fit, or how much is in one whole — find the quotient with a model or by multiplying by the reciprocal, and check it by multiplying.

Remember6.9 · Part II

Dividing Whole Numbers by Fractions

  1. Name the question: 4 ÷ 1/2 asks how many 1/2s fit in 4
  2. Count with a model: each whole holds 2 halves, so 4 wholes hold 4 × 2 = 8 halves
  3. Shortcut: multiply by the reciprocal of the divisor, 6 ÷ 3/4 = 6 × 4/3 = 8, then check by multiplying: 8 × 3/4 = 6

Words: Whole Number (Número entero)Fraction (Fracción)Reciprocal (Recíproco)Keep, Change, Flip (Mantener, cambiar, invertir)Quotient (Cociente)

Part 1Practice the skill
  1. 1Complete each step, then write the final answer.

    Find 6 ÷ 1/2.

    Show your work
    Final answer:
  2. 2Complete each step, then write the final answer.

    Find 9 ÷ 3/4.

    Show your work
    Final answer:
  3. 3Circle the letter of the best answer. Show how you know.

    What is 6 ÷ 1/3?

    1. A2
    2. B3
    3. C6/3
    4. D18
    Show your work
  4. 4Circle the letter of the best answer. Show how you know.

    What is 3 ÷ 1/5?

    1. A3/5
    2. B5/3
    3. C8
    4. D15
    Show your work
  5. 5Circle the letter of the best answer. Show how you know.

    What is 10 ÷ 1/4?

    1. A2.5
    2. B10/4
    3. C14
    4. D40
    Show your work
Part 2Apply it
  1. 6Complete each step, then write the final answer.

    A number divided by 2/3 is 12. What is the number?

    Show your work
    Final answer:
  2. 7Complete each step, then write the final answer.

    A ribbon is 6 yards long. Each bow uses 3/5 yard. How many bows can you make?

    Show your work
    Final answer:
  3. 8Complete each step, then write the final answer.

    A gardener has 7 pounds of soil. Each pot needs 2/3 pound. How many pots can she fill all the way?

    Show your work
    Final answer:
  4. 9Complete each step, then write the final answer.

    Find 10 ÷ 5/6 and 10 ÷ 5/8. How much greater is the second quotient?

    Show your work
    Final answer:
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