Adding Fractions
           Adding Fractions with the Same Denominator
              •   Add the numerators.
              •   Keep the same denominator
              •   Simplify.
             24246 2
             9    9      9      9     3
      Adding Fractions
      To add fractions with different denominators:
         1. Write each fraction as an equivalent fraction with 
            the LCD.
         2. Add the numerators and keep the LCD.
         3. Simplify.
             1  1    1 4    1(3)
                     
             3  4    34   4(3)
      LCD: 12      4  3
                     12 12
                   7
                     12
      Adding Fractions
            3∙ 4 3 ∙ 1      12      3
                               
            5∙ 4 20∙ 1      20     20
                         15
          LCD: 20           20
                         3
                            4
          Adding Fractions
                      ∙ 2      ∙ 3
                   2  5            4 15
                   9       6            18         18
                     ∙ 2       ∙ 3
               LCD: 18                  19
                                    
                                        18
       Adding Fractions
            7∙ 5  5∙ 3    35     15
                             
           18     30      90     90
              ∙ 5   ∙ 3
        LCD:
        18 = 2∙3∙3     50
        30 = 2∙3∙5        90
       LCD = 2 ∙3 ∙3 ∙5   5
                = 90   
                          9