FRACTIONS

JIGSAW

HOW THIS WORKS:

Step 1:

On your assigned slide, answer the questions and add pictures. Become an expert on your topic!

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Step 2:

On your new slide, teach your topic to others and help them complete an example.

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GROUP 1: EQUIVALENT FRACTIONS

• What does “equivalent” mean?

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• Explain how to reduce the fraction: 18/24

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• Shade the boxes to show that 2/3 = 4/6

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equivalent is just a fancy way to say equal

You reduce by 4 you divide 4 is the GCF ( greatest common factor) of 18 and 24 is 4 do you divide by 4 and and that is how you get 3/4

GROUP 2: MIXED NUMBERS & IMPROPER FRACTIONS

• Shade the boxes to represent a mixed number. Then write it as an improper fraction.

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• Explain how you would convert 17/3 to a mixed number.

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• Explain how you would convert 4 ⅕ to an improper fraction.

How much times can three go into 17 which is 5 and then you put whatever is left which is ⅔ and the total answer is 5 2/3

First you 4x5 and you get 20 they you + 1 and = 21 then you keep the denominator which is 5 and you get 21/5

1 3/5= 8/5

Group 3: ADDING & SUBTRACTING

FRACTIONS

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• In order to add two fractions, they must have a common

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• Shade the shapes to show that ¾ + 5/12 is NOT = 8/16

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• Explain how you would add: ⅖ + 1/15

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COMMON DENOMINATOR

WE SEE IF THE 5 UNDER THE 2 CAN CHANGE IT TO A 15 AND THEN WE MULTIPLY THE NUMBER THAT MULTIPLY 5 IS 3 SO IT BECOMES A 6 AND THE 1 STAYS THE SAME BECAUSE IT ALREADY HAS A 15 AND THEN WE JUST ADD A GET 7/15 OR YOU CAN REDUCE

GROUP 4: MULTIPLYING & DIVIDING FRACTIONS

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• Explain in words how to multiply two fractions together.

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• What process do we always use to divide two fractions? Provide an example.

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• Shade the boxes to show that ½ of ¼ = ⅛

You multiply the numerators together and you multiply the denominators together

KCF (keep change flip)

Now that you are all experts, teach your classmates what you know!

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GROUP 1: SOLVE THE PROBLEMS!

1. List two fractions that are equivalent to ⅘.

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• Reduce: 16/20

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• Write as a mixed #:

15/4

4. Subtract.

1/3 - 2/7

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• Multiply.

3/12 x 5/6

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• Divide.

7/8 ÷ 1/2

8

8/10,20/25

4/5

3 3/4

1/21

5/24

1 3/4

GROUP 2: SOLVE THE PROBLEMS!

• List two fractions that are equivalent to ⅘.

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• Reduce: 16/20

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• Write as a mixed #:

15/4

• Subtract.

1/3 - 2/7

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• Multiply.

3/12 x 5/6

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• Divide.

7/8 ÷ 1/2

9

8/10 16/20

4/5

3 3/4

1/21

15/72

7/2

GROUP 3: SOLVE THE PROBLEMS!

• List two fractions that are equivalent to ⅘.

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• Reduce: 16/20

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• Write as a mixed #:

15/4

• Subtract.

1/3 - 2/7

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• Multiply.

3/12 x 5/6

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• Divide.

7/8 ÷ 1/2

10

8/10, 12/15

4/5

3 ½

1/21

5/24

1 ¾

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