Page 30 - SPARK OF MATH book 5
P. 30

Adding mixed numbers.



                           1        1
                       2      +1
                           3        2




            Step 1     Add the whole number.
                       «store» the answer for                   2 + 1= 3
                       later use!






                                                                  1      1
            Step 2     Add the fraction parts.                       +
                                                                  3      2





                       6 is a common multiple of 3 and 2



                       Change the first fraction to               1 2        2
                                                                    ×
                       an equivalent fraction with                3 2   =    6
                                                                    ×
                       a denominator of 6.






                                                                    ×
                        Do the same for the                       1 3   =    3
                        second fraction.                          2 3        6
                                                                    ×





                        Add the fraction parts.
                        Convert to a mixed                   1   +   1  =    2  +   3  =    5
                        number if neccesary.                 3       2       6      6       6






            Step 3      And finaly. Add the             1         1            5
                        results of the whole  2             +  1      =   3
                        number addition.                3         2            6







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