1. 1 STANDARD 1.2 MULTIPLYING FRACTIONS PROBLEM 1 PROBLEM 4PROBLEM 3 PROBLEM 2 PROBLEM 5 PROBLEM 8PROBLEM 7 PROBLEM 6 PROBLEM 9 AREA OF A RECTANGLE EQUIVALENT 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 Area of a Rectangle L A = L W where: W= width L= length A= area W STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

4. 4 Find the area of the following rectangle. 7 in A = L W where: W= 4 in L= 7 in A= ? 4 in A = (7in)(4in) A = 28 in 2 The area of the rectangle is 28 square inches. STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

5. 5 of 1 2 1 2 = 1 4 1 2 1 2 = 1 4 1 2 1 2 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

6. 6 2 2 3 3 4 4 6 6 EQUIVALENT FRACTIONS = 2 4 = 3 6 = 4 8 = 6 12 FRACTION in lowest termsFRACTION IN HIGHEST TERMS GOING FROM lowest terms to HIGHEST TERMS 1 2 1 2 1 2 1 2 = 1 2 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

7. 7 2 4.... 2 2 = 1 2 3 6.... 3 3 = 1 2 4 8.... 4 4 = 1 2 6 12.... 6 6 = 1 2 = 1 2 FRACTION in lowest termsFRACTION IN HIGHEST TERMS EQUIVALENT FRACTIONS GOING FROM HIGHEST TERMS to lowest terms STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

8. 8 of 1 3 3 4 = 3 12 3 4 1 3 = 3 1 3 3 4 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

9. 9 of 1 3 3 4 = 3 12 3 4 1 3 = 3 1 3 3 4 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

10. 10 of 1 3 3 4 = 3 12 3 4 1 3 1 3 1 4.... 3 3 = 1 4 Why? = 3 12 = 1 4 FRACTION in lowest termsFRACTION IN HIGHEST TERMS STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

11. 11 1 2 1 12 of 1 2 2 12 = 2 24 = 2 1 2 2 12 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

12. 12 1 2 of 1 2 2 12 = 2 24 1 2 2 12 = 1 Why?.... 2 2 1 12 FRACTION in lowest termsFRACTION IN HIGHEST TERMS = 2 24 = 1 12 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

13. 13 1 2 1 4 of 1 2 1 4 = 1 8 = 1 8 1 2 1 4 What happens when we multiply numbers greater than 1? (3)(5) = 15 15 is greater than 3 and 5. So, when we multiply numbers greater than 1 we get a bigger number that any of them. When we multiply numbers smaller than 1, we get a number smaller than any of them. Can you observe that multiplying numbers less than 1 we have one smaller that any of the numbers in the product? 1 8 is less than and. 1 2 1 4 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

14. 14 1 2 1 4 of 1 2 1 4 = 1 8 = 1 8 1 2 1 4 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

15. 15 1 2 3 4 of 1 2 3 4 = 3 8 = 3 8 1 2 3 4 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

16. 16 1 2 2 3 of 2 3 1 2 = 2 6 = 2 6 2 3 1 2 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

17. 17 1 2 2 3 of 2 3 1 2 = 2 6 2 3 1 2 = 1 3 Why?.... 2 2 FRACTION in lowest termsFRACTION IN HIGHEST TERMS = 2 6 = 1 3 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

18. 18 3 4 3 4 of 3 4 3 4 = 9 16 3 4 3 4 = 9 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

19. 19 3 4 5 6 of 3 4 5 6 = 15 24 3 4 5 6 = 15 24 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

20. 20 3 4 5 6 of 3 4 5 6 = 15 24 3 4 5 6 = 15 24 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

21. 21 3 4 5 6 of 3 4 5 6 = 15 24 3 4 5 6.... 3 3 = 5 8 Why? FRACTION in lowest termsFRACTION IN HIGHEST TERMS = 15 24 = 5 8 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ. All rights reserved