Divide Fraction by Fraction

​Dividing Fractions

Mr. Mefford

Poll

How do you feel about fractions as told by the office

​Vocabulary Words

Some text here about the topic of discussion

​Improper Fraction - Fraction whose numerator is larger than the denominator.

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​Whole Number - A fraction where the denominator is always 1.

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Simplifying Fractions - ​dividing the numerator and denominator by the same number. Placing the fraction in lowest terms.

Denominator - The bottom number of a fraction that tells how many equal parts are in the whole.

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​Numerator - The top number of a fraction that tells how many parts of a whole are being considered.

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​KCF - Keep, Change Flip

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Reciprocal - ​any two numbers whose product is one when multiplied (flipped fraction)

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Mixed Number - ​a number including a whole number and a fraction.

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Steps to follow for dividing fractions

Step 1 - Only have fractions in the division sentence

Make sure you do not have any mixed numbers in the division sentence.

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Step 2 - Keep, Change, Flip

Keep the first fraction the same, change the division sign to multiplication, and flip the second fraction.

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Step 3 - ​Multiply

You will multiply straight across. Simplify if needed and convert to a mixed number. ​

6th Grade| Math

Dividing Fractions

Match

Match the following fraction with the reciprocal

• 1/6

• 3/4

• 2/7

• 9/10

• 3/8

6

4/3

7/2

10/9

8/3

• 6

• 4/3

• 7/2

• 10/9

• 8/3

Let's draw a model of this word problem.

Ms. Pellegrini bought a packet of goldfish. The packet of goldfish weighs 1/5 of a pound. She puts an equal amount of the goldfish in two jars. What is the weight of each jar?

What does it mean to "flip" a fraction???

Multiple Choice

$$\frac{1}{2}$$   Inverse?

• $$\frac{2}{1}$$  

• $$\frac{1}{2}$$  

• $$\frac{3}{4}$$  

• $$\frac{2}{3}$$  

Multiple Choice

What is the first step to dividing fractions (after I turn my whole number into a fraction)?

• Find the reciprocal and flip

• Change the division sign to a multiplication sign

• Keep the first number the same

• Multiply straight across

Multiple Choice

What is the reciprocal of 8?

• 1/2

• 1/8

• 1/4

• What is a reciprocal?

Fill in the Blanks

If it starts as a whole, it ends as a

Multiple Choice

3 $$\div$$ $$\frac{1}{3}$$

• $$\frac{3}{3}$$

• $$\frac{6}{3}$$

• $$\frac{1}{9}$$

• 9

Draw

Draw the model for 3 $$\div$$ $$\frac{1}{3}$$

Fill in the Blanks

If it starts as a fraction, it ends as a

Multiple Choice

$$\frac{1}{4\ }$$ $$\div$$ 2

(KCF)

• 8

• $$\frac{1}{6}$$

• $$\frac{3}{4}$$

• $$\frac{1}{8}$$

Draw

Draw the model for $$\frac{1}{4}$$ $$\div$$ 2

Game Cards stay sitting

No cards Find a partner

Solve together!

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Whole #'s first, unit fractions second

Speed dating with fractions part 1

Find a partner

Partner 1- standard algorithm

Partner 2- model

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speed dating with fractions part 2

Calia shares half of a package of clay equally among herself and each of 2 friends. What fraction of the whole package of clay will each friend get?

Mr. Morales makes four batches of cookies for family math night. He divides half of a pound of butter equally into 4 mixing bowls. How much butter is in each bowl?

Open Ended

How will my answers change when I'm solving $$\frac{1}{3}$$ $$\div$$ 2 versus 2 $$\div$$ $$\frac{1}{3}$$ ?

(My answers will different because....)

Poll

How do you feel about fractions as told by the office