# Dividing Fractions by Fractions 6A Academic Lab Math Intervention Lesson 2 of Dividing Fractions by Fractions.

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Dividing Fractions by Fractions 6A Academic Lab Math Intervention Lesson 2 of Dividing Fractions by Fractions

Let’s watch two video clips explaining what it means to divide fractions by fractions. Quick Review: Dividing Fractions by Whole Numbers Using Models ◦http://learnzillion.com/lessons/203-divide-fractions-by- whole-numbers-using-modelshttp://learnzillion.com/lessons/203-divide-fractions-by- whole-numbers-using-models  This video is just over 5 minutes. Further Explanation: Dividing Fractions by Fractions Using Models ◦http://learnzillion.com/lessons/204-divide-fractions-by- fractions-using-modelshttp://learnzillion.com/lessons/204-divide-fractions-by- fractions-using-models  This video is just 5 minutes.

Using arrays to model dividing fractions by fractions.

P1P2P3 P4P1P2 P3P4 ?? P1P2P3 P4P1P2 P3P4

Using the standard algorithm to divide fractions by fractions Using the same lasagna pan from the array model, let’s solve this division problem using the standard algorithm.

Compare the model to the algorithm, which method makes sense to you! Array Model Solution Standard Algorithm: Calculation process/steps Each person would receive 2 full squares and ½ of another square for a total of 2½. P1P2P3 P4P1P2 P3P4 P1 P2 P3 P4

Student Practice- On a piece of paper, make an ARRAY MODEL to help you complete the division problem. Remember! Use a rectangle or square array! Pies and pizzas don’t have to be drawn as a circle!

Student Practice- On a piece of paper, make an ARRAY MODEL to help you complete the division problem. Remember! Pies and pizzas don’t have to be drawn as a circle! Use a rectangle or square array! First, create an array model with 10 equal size pieces then shade the remaining 9 pieces leaving the piece that Brooke ate empty. Second, equally share the remaining FULL pieces between the 3 friends. Third, count the number of pieces for each friend. Finally, how many equal pieces will each friend get? Friend1Friend2Friend3Friend1Friend2 Friend3Friend1Friend2Friend3 3 out of 10 TOTAL pieces = 3/10

Student Practice- On a piece of paper, solve this same problem but using the standard division of fractions algorithm. Remember! Use a rectangle or square array! Pies and pizzas don’t have to be drawn as a circle!

Student Practice- On a piece of paper, solve this same problem but using the standard division of fractions algorithm. 3

Congrats YOU have completed Lesson #2 of dividing fractions by fractions!

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