REVIEW: Simplifying Fractions                         Name ___________________________________
Key Concept and Vocabulary                        Visual Model
            8
            ==   
                   2 4    2                                                  unsimplified
            12      
                   3 4    3
                                                        8                                                        
                                                        12
            Divide numerator
            and denominator                                                   simplified
            by common factor.
                                                        2                                                        
                                                        3
Skill Examples                                        Application Example
       2    1
             1 2
  1.  =  =                                          5. Five of the 25 students in
       4    2
             2 2                                          your class have a Facebook                5       5
       3 1 3 1                                           account. Write this fraction
  2.   =     =
       6 2 3 2                                           in simplifed form.                    5               5
  3.
       15 3  5 3
       =       =
                                                                 5
                                                                 ==  
                                                                       1 5     1                        5
       20 4  5 4                                                25     
                                                                       5 5     5
        80  4  20 4
  4.   =        =                                             One-fifth of your class has a
       100 5  20 5                                              Facebook account.
PRACTICE                MAKES    PURR-FECT                 Check your answers at BigIdeasMath.com.
Simplify the fraction.
       16                          10                       6                              15
  6.  = ______                  7.  = ______         8.  = ______                9.  = ______
       18                          12                       8                              45
       12                          14                       6                              20
10.  = ______                  11.  = ______        12.  = ______               13.  = ______
       40                          21                       2                              50
       12                          20                       75                             21
14.  = ______                  15.  = ______        16.  = ______               17.  = ______
       30                          15                       85                             35
Shade the model so that the fraction is simplified.
18.
                                                 =
19.
                                                 =
20. FACEBOOK Eight of the 24 students in your class have a Facebook account.
    Write this fraction in simplified form.
21. SIMPLIFYING Write five different fractions that each simplify to two-fifths.
Copyright  Big Ideas Learning, LLC                                                                     Topic 5.2