Page 104 - New Medley 3 Semester 2
P. 104

2      1      2- 1        1
               Thus,                                  -     =            =     .
                                                  4      4         4        4

               To  subtract  one  fraction  from  the  another  fraction  having  the  same



               denominator,  we  find  the  difference  between  numerators  and  keep  the
               denominator common.

               Example 6:  Subtract the following.
                                           4      1                 5     2                 8       5
                                    (a)        -       (b)             -       (c)               -
                                           9      9                 7     7                10       10

               Solution:           Since the fractions have the same denominators, therefore

                                           4     1       4- 1        3
                                    (a)       -      =            =
                                           9      9         9        9

                                           5     2       5- 2         3
                                    (b)       -      =            =
                                           7     7          7         7


                                            8       5       8- 5          3
                                    (c)         -       =            =
                                           10      10         10         10

                                                        EXERCISE 3.4



                A.  Use the given figures to perform the following additions.

                                                                                5                   +6
                      1.                                                            +        =           =
                                                                               12      12         12        12

                                                                        3               1      3+5 +1
                      2.                                                    +       +        =              =
                                                                        14     14                              14


                                                                                  2      3         +
                      3.                                                             +       =           =
                                                                                  8      8         8         8

                B.  Add the following.
                          4      2                  3     1                 4     1                 1     2
                     1.       +                2.      +               3.      +               4.      +
                           7     7                  5     5                 6     6                 4     4
                           5       6                 8      2                1      4                2      4
                     5.        +               6.       +              7.        +             8.       +
                          13      13                11     11               10      10              15     15
                          2      3     1                    4       3       5                1       3       5
                     9.       +     +                10.        +       +            11.         +       +
                          9      9     9                   16      16      16               20      20      20

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