Page 180 - New Medley 5 Semester 1
P. 180

EXERCISE 4.2



                A.  Change the following unlike fractions into like fractions.
                          1 5                        5    5                 3 6                      9   10
                     1.     ,                  2.      ,               3.     ,                4.      ,
                          3 9                       16 8                    5 7                     14 21

                B.  Compare the following fractions using >, < or =.
                           8        3               15      15               4      3               2      4
                     1.                        2.                      3.                      4.
                          25       25                9      12              12      9               3      7
                           4        7                6       6                1       5              9       5
                     5.                        6.                      7.   2       1          8.
                          15       15               11      14                2       6             17      13

                C.  Arrange the following fractions in ascending order:

                          25 25 25 25                                          8   11     4    9
                     1.       ,     ,    ,                               2.      ,     ,    ,
                          43 17 29 37                                         15 18 11 16

                           4     5    6     8                                 14 19 18 11
                     3.       ,     ,    ,                               4.      ,     ,     ,
                          12 16 20 32                                         27 27 27 27


                D.  Arrange the following fractions in descending order:
                          2 4 7 3                                              4    9     2   12
                     1.     ,    ,   ,                                   2.      ,     ,    ,
                          5 3 8 4                                             15 15 15 15

                            2     5    6     6                                5    5    9     6
                     3.   4 ,   2 ,       ,                              4.     ,    ,     ,
                            7     9 17 11                                     6 15 12 15

                                     Addition and Subtraction of Fractions


               Like Fractions

               We  learnt  in  Class  IV  that  to  add  or  subtract  like  fractions,  we  add  or

               subtract numerators only and keep the denominator same.

                                                                            Sumof numerators
               That means, addition of like fractions =
                                                                          Commondenominator

                                                                         Differenceof numerators
               and       subtraction of like fractions =
                                                                            Commondenominator


               Note:  1.  Express the answer in the lowest term.

                         2.  Convert the improper fraction into the mixed fraction in final result.


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