1. 5 Minute Check

10. Tuesday, April 28 Lesson 7.4.4 Add and Subtract Unlike Fractions

11. Objective: To add and subtract fractions with unlike denominators.

12. Add and Subtract Unlike Fractions Unlike fractions are fractions with different denominators.

13. Add and Subtract Unlike Fractions Unlike fractions are fractions with different denominators. Before you can add or subtract unlike fractions, rename one or both of the fractions so they have the same denominator.

14. Add and Subtract Unlike Fractions Unlike fractions are fractions with different denominators. Before you can add or subtract unlike fractions, rename one or both of the fractions so they have the same denominator. This same denominator is called the common denominator.

15. Add and Subtract Unlike Fractions

16. We know that the LCM of two prime numbers is the product of those two numbers.

17. Add and Subtract Unlike Fractions Can we conclude the LCM of a prime and any number is also the product of those two numbers?

18. Add and Subtract Unlike Fractions Can we conclude the LCM of a prime and any number is also the product of those two numbers? Only when the prime number is the larger of the two. e.g - the LCM of 4 and 11 is 4·11 is 44, but the LCM of 3 and 15 is 15.

19. Add and Subtract Unlike Fractions

46. Use the table to find the fraction of the total population that has type A or type B blood.

47. Add and Subtract Unlike Fractions

54. One hundred sixty cell phone owners were surveyed. What fraction of owners prefers using their cell phone for text messaging or playing games?

55. Add and Subtract Unlike Fractions

56. One hundred sixty cell phone owners were surveyed. What fraction of owners prefers using their cell phone to take pictures or text messaging?

57. Add and Subtract Unlike Fractions

58. Ebony is building a shelf to hold the two boxes shown. What is the least width she should make the shelf?

59. Add and Subtract Unlike Fractions

60. Agenda Notes No Homework – Homework Practice 7.4.4 Due by the end of the period Circle all answers and show all work Make sure you bring your text book tomorrow. Mid-Chapter 7.4 Quiz Thursday, April 30