6.NOS.1 Group 1 · Extra Support

Practice Set · Part 1

Fraction Division Problem Solving

Pick up where we left off

Name: Date: Group:

Where we left off

Our goal: With my small group, I can solve real-world problems by writing and solving fraction division equations — one step at a time, with support.

The big idea: The total is the dividend and the size of one group is the divisor, so total ÷ group size tells how many groups.

Model to copy — Example 1 · How many groups fit?

  1. Agent Torres has 2/3 gallon of dust. Each test uses 1/6 gallon. How many tests can she run?
  2. Find the total. It is the dividend: 2/3 gallon
  3. Find the size of one test. It is the divisor: 1/6 gallon
  4. Write the equation and solve it: 2/3 ÷ 1/6 = 2/3 × 6/1 = 12/3 = 4
  5. Check by multiplying back: 4 × 1/6 = 4/6 = 2/3
  6. She can run 4 tests.

Start here

You did these with your group. Now do them on your own — the model above is yours to copy.

  1. 1

    Same stepsFinish what the group started. Use the model above, step for step.

    Let's do one together: A ribbon is 3/4 yard long. Each bow uses 1/4 yard. How many bows can you make? What is the total? Is it the dividend or the divisor? (3/4 yard. It is the dividend.) How much ribbon does one bow use? (1/4 yard. It is the divisor.) Write the equation and solve it. (3/4 ÷ 1/4 = 3/4 × 4/1 = 12/4 = 3) Check: multiply your answer by 1/4. Do you get the total? (3 × 1/4 = 3/4. Yes.)

    My first step is ___ , because the problem asks for ___ .

    Show your work
  2. 2

    Warm restartConvert 3 2/5 to an improper fraction.

    1. A6/5
    2. B15/5
    3. C17/5
    4. D32/5
  3. 3

    Warm restartWhat is 2 1/2 ÷ 1/2?

    1. A1 1/4
    2. B2 1/4
    3. C4
    4. D5
  4. 4

    Warm restartWhat is 1 1/2 ÷ 3/4?

    1. A1 1/8
    2. B2
    3. C3/4
    4. D9/8
6.11 Small Group · Group 1 · Practice SetPart 1 of 4
6.NOS.1 Group 1 · Extra Support

Practice Set · Part 2

Fraction Division Problem Solving

Keep going

You answered these out loud. Now write them.

Answer, then say how you know — the reason is the part that counts.

  1. 5

    Think it throughWhich equation matches the problem?

    1. A1/12 ÷ 5/6 = t
    2. B5/6 ÷ 1/12 = t
    3. C5/6 × 1/12 = t
    4. D5/6 + 1/12 = t

    Why is that the answer?

    I chose ___ because ___ .

  2. 6

    Think it through5/6 ÷ 1/12 = ?

    1. A2
    2. B5/72
    3. C10
    4. D12

    How do you know?

    I chose ___ because ___ .

  3. 7

    Think it throughIs 10 tests a reasonable answer?

    1. ANo — the answer should be less than 1
    2. BYes — each test uses far less than the total, so the answer should be well above 1
    3. CNo — you cannot divide fractions
    4. DYes — because 10 is a round number

    Explain your thinking.

    I chose ___ because ___ .

  4. 8

    Back to the modelHow do you decide which value is the dividend and which is the divisor in a word problem?

    The total amount is the ___ because it is being split into groups. The size of each group is the ___ because we are dividing by that amount.

6.11 Small Group · Group 1 · Practice SetPart 2 of 4
6.NOS.1 Group 1 · Extra Support

Practice Set · Part 3

Fraction Division Problem Solving

Words and reasoning

Word bank · Banco de palabras

Model (Modelo)Equation (Ecuación)Solution (Solución)Reasonableness (Razonabilidad)Inverse operations (Operaciones inversas)

Use the words

Fill each blank with a word from the bank.

Explain the thinking

  1. 9

    Find the mistakeAnother student made this exact mistake in this lesson. Explain why it is wrong, then write what they should have done.

    The mistake: A common mistake in Fraction Division Problem Solving is reversing which fraction is the dividend and which is the divisor when setting up the equation from a word problem.
  2. 10

    Say moreWhat clue in a word problem tells you to divide fractions instead of multiply?

    The problem asked me to find ___, so I divided.

  3. 11

    Change one numberGo back to Part 1 and pick one problem you already solved. Change one number in it, then solve your new version. Show every step.

    If ___ changed to ___ , then ___ .

    Show your work
6.11 Small Group · Group 1 · Practice SetPart 3 of 4
6.NOS.1 Group 1 · Extra Support

Practice Set · Part 4

Fraction Division Problem Solving

Show what you know

Last check

These two come from Lesson 6.10. If they are shaky, that is the lesson to revisit — not this one.

  1. 12

    Show what you knowQuick check — you've got this: A pipe is 3/4 meter long. Each connector piece is 3/8 meter. How many connectors fit on the pipe?

    1. A2
    2. B3/2
    3. C6
    4. D9/32

    Explain your choice.

    I know it is ___ because ___ .

  2. 13

    From Lesson 6.10Quick check — you've got this: What is 2 2/3 ÷ 2/3?

    1. A1 7/9
    2. B2/3
    3. C4
    4. D8/3
  3. 14

    From Lesson 6.10Check the answer: how long are 7 pieces of 3/4 foot?

    1. A3/4 foot
    2. B5 1/4 feet
    3. C5 3/4 feet
    4. D7 feet

Be honest — this tells your teacher what to do next

I can…Not yetGetting thereGot it
I can solve real-world problems by writing and solving fraction division equations — one step at a time, with support.
I can explain why it works: The total is the dividend and the size of one group is the divisor…
I can talk through each step out loud using a sentence frame and the lesson's key words.

One question I want to ask my group next time