Page 94 - New Medley 4 Semester 2 PDF (Merged)
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Like and Unlike Fractions



               Observe the following figures.

                                           We observe that both the circles are divided into same
                                                                                                                     4
                                           parts but shaded differently. Thus, the fractions like
                                                                                                                     8

                    4              3             3
                                           and   having same denominator are called like fractions.
                    8              8             8

               In squares, we observe that they are divided differently.
                                       3         5
               So, the fractions    and   having different denominators
                                       4         6

               are called unlike fractions.                                                        3              5
                                                                                                   4              6
               Converting Unlike Fractions Into like Fractions


               We  can  convert  given  unlike  fractions  into  like  fractions  by  finding  their
               equivalent fractions with the same denominator.



                                                1          5
               Example 4:  Change                   and        into like fractions.
                                                4          6

               Solution:           Let  us  find  the  equivalent  fractions  of  the  given  unlike
                                   fractions with the denominator as the LCM of 4 and 6.


                                                   2  4,  6
                                                               ∴ LCM = 2 × 2 × 3 = 12
                                                     2,  3
                                      LCM of 4 and 6 is 12.


                                                                   1      1× 3        3
                                   ∴                                  =           =
                                                                   4      4× 3       12


                                                                   5      5×2        10
                                   and                                =           =
                                                                   6      6× 2       12


                                              3          10
                                   Thus,          and         are like fractions.
                                             12          12




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