1. 1 STANDARD 1.2 DIVIDING FRACTIONS PROBLEM 1 PROBLEM 3 PROBLEM 2 PROBLEM 4 A pizza riddle? What is the rule to divide fractions? END SHOW PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

2. 2 1.2 Add, subtract, multiply and divide rational numbers and take positive rational numbers to whole-number powers 1.2 Sumar, restar, multiplicar y dividir números racionales y elevar números positivos racionales a potencias de enteros. GRADE 7: Number Sense PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

3. 3 STANDARD 1.2 Rose owns a pizzeria. She wants to know how many slices of a circle can she obtain from of a circular pizza? 3 4 1 8 = 6 OR 1 8 3 4 1 2 34 5 6 1 2 3 4 5 6 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

4. 4 STANDARD 1.2 1 2 2 12 How many times does fit into ? 1 2 2 12 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

5. 5 STANDARD 1.2 1 2 2 12 How many times does fit into ? 1 2 2 12 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

6. 6 STANDARD 1.2 1 2 2 12 How many times does fit into ? 1 2 2 12 1 2 3 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

7. 7 STANDARD 1.2 1 2 2 12 = 3 3 How many times does fit into ? 1 2 2 12 1 2 3 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

8. 8 STANDARD 1.2 2 3 1 12 How many times does fit into ? 2 3 1 12 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

9. 9 STANDARD 1.2 2 3 1 12 How many times does fit into ? 2 3 1 12 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

10. 10 STANDARD 1.2 2 3 1 12 How many times does fit into ? 2 3 1 121 23 4 5 6 7 8 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

11. 11 STANDARD 1.2 = 8 8 2 3 1 12 How many times does fit into ? 2 3 1 12 123 4 5 6 7 8 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

12. 12 STANDARD 1.2 3 4 3 12 How many times does fit into ? 3 4 3 12 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

13. 13 STANDARD 1.2 3 4 3 12 How many times does fit into ? 3 4 3 12 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

14. 14 STANDARD 1.2 3 4 3 12 How many times does fit into ? 3 4 3 12 1 2 3 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

15. 15 STANDARD 1.2 = 3 3 3 4 3 12 How many times does fit into ? 3 4 3 12 1 2 3 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

16. 16 STANDARD 1.2 1 4 How many times does fit into ? 1 4 1 6 1 6 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

17. 17 STANDARD 1.2 1 4 How many times does fit into ? 1 4 1 6 1 6 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

18. 18 STANDARD 1.2 1 4 How many times does fit into ? 1 4 1 6 1 6 1 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

19. 19 STANDARD 1.2 1 4 How many times does fit into ? 1 4 1 6 1 6 1 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

20. 20 STANDARD 1.2 1 4 How many times does fit into ? 1 4 1 6 1 6 1 1 2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

21. 21 STANDARD 1.2 1 4 How many times does fit into ? 1 4 1 6 1 6 = 1 1 2 1 1 2 1 1 2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

22. 22 STANDARD 1.2 Is it a way of solving all these problems without fraction bars? = 1 2 = 2 3 = 3 4 = 1 4 = 1X12 2X22X2 12 4 = = 3 = 2X12 3X13X1 24 3 = = 8 12 4 = = 3 = 1X6 4X14X1 6 4 = 6 4 1 4 2 = 1 2 4.... 2 2 = 1 1 2 = 1 1 2 1 2 2 12 2 2 3 1 1 3 4 3 3 1 4 1 6 6 1 Multiply by the reciprocal Can you figure out the rule? PRESENTATION CREATED BY SIMON PEREZ. All rights reserved