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lesson 22.notebook                                     October 08, 2012



           Assignment:

           1­­>Set 23 (odds) ­ Due Wednesday (10/10)

           2­­>Test #2 signed??




                                                                          1
lesson 22.notebook                                                           October 08, 2012


           Lesson 22 Warm­Up:
           1) Classify this triangle by sides and by angles 
           AND state the measure of each angle.
                             C
                                        A




                                 B
           2) Alex read 20 pages per hour.  How many pages can he read in 1  1/4 
           hours?

           3) If four boxes weigh 20 pounds, how much would six boxes weigh?

           4) What is 25% of 400?

           5) Simplify: 4  +  (11  +  32)  x  23




                                                                                                2
lesson 22.notebook                                October 08, 2012


             Lesson 22:
             FYI­­>

             *To multiply fractions ­ 
                if possible, "cancel" first ­ 
             then multiply tops ­ 
             then multiply bottoms
             SIMPLIFY!!

             *To divide fractions ­ 
                 flip the 2nd fraction first ­ 
             if possible, "cancel" ­ 
             then multiply tops ­ 
             then multiply bottoms
             SIMPLIFY!!




                                                                     3
lesson 22.notebook                   October 08, 2012


              Examples ­ Lesson 22

              Simplify.
              A)  1/4  x  1/2


              B)  1/2  x  3/4


              C)  5/6  x  2/3


              D)  3/4  x  1/3




                                                        4
lesson 22.notebook                                              October 08, 2012


              E)  What number is 1/2 of 3/5?



              F)  What number is 2/3 of 3/4?



              Write the multiplicative inverse of the number.

              G)  3/8

              H)  4




                                                                                   5
lesson 22.notebook                             October 08, 2012


              I)  How many 2/3's are in 1?


              J)  1   3/5


              K)  1   1/6



              L)  How many 1/2's are in 3/4?




                                                                  6
lesson 22.notebook                October 08, 2012



              Simplify.

              M)  2/3     3/4



              N)  3/4     2/3  


              O)  3/4     1/3




                                                     7

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  • 1. lesson 22.notebook October 08, 2012 Assignment: 1­­>Set 23 (odds) ­ Due Wednesday (10/10) 2­­>Test #2 signed?? 1
  • 2. lesson 22.notebook October 08, 2012 Lesson 22 Warm­Up: 1) Classify this triangle by sides and by angles  AND state the measure of each angle. C A B 2) Alex read 20 pages per hour.  How many pages can he read in 1  1/4  hours? 3) If four boxes weigh 20 pounds, how much would six boxes weigh? 4) What is 25% of 400? 5) Simplify: 4  +  (11  +  32)  x  23 2
  • 3. lesson 22.notebook October 08, 2012 Lesson 22: FYI­­> *To multiply fractions ­  if possible, "cancel" first ­  then multiply tops ­  then multiply bottoms SIMPLIFY!! *To divide fractions ­  flip the 2nd fraction first ­  if possible, "cancel" ­  then multiply tops ­  then multiply bottoms SIMPLIFY!! 3
  • 4. lesson 22.notebook October 08, 2012 Examples ­ Lesson 22 Simplify. A)  1/4  x  1/2 B)  1/2  x  3/4 C)  5/6  x  2/3 D)  3/4  x  1/3 4
  • 5. lesson 22.notebook October 08, 2012 E)  What number is 1/2 of 3/5? F)  What number is 2/3 of 3/4? Write the multiplicative inverse of the number. G)  3/8 H)  4 5
  • 6. lesson 22.notebook October 08, 2012 I)  How many 2/3's are in 1? J)  1 3/5 K)  1 1/6 L)  How many 1/2's are in 3/4? 6
  • 7. lesson 22.notebook October 08, 2012 Simplify. M)  2/3 3/4 N)  3/4 2/3   O)  3/4 1/3 7