Page 3 - MM 7
P. 3

[Therefore, LCM = 2 × 2 × 2 × 2 × 3 = 48]

               So, we convert the given fractions into equivalent fractions with denominator
               48.

               We have,

                                       34
                 17
               =  / 24 =  (17 × 2) / (24 × 2) =  / 48 [since 48 ÷ 24 = 2]

                     15
                                          45
               and,  / 16 =  (15 × 3) / (16 × 3) =  / 48 [since 48 ÷ 16 = 3]

                               34
                        45
               Clearly,  / 48 >  / 48

                                  17
                           15
               Therefore,  / 16 >  / 24

                                     15
                                            17
               Hence, difference =  / 16 –  / 24

                 45
                        34
               =  / 48 –  / 48

               =  (45 – 34) / 48

                 11
               =  / 48.
               WORD PROBLEMS ON ADDITION AND SUBTRACTION:

               Example 1: Rachel rode her bike for one-fifth of a mile on Monday and two-fifths of a
               mile on Tuesday. How many miles did she ride altogether?


               Solution: To solve this problem, we will add two fractions with like denominators.













               Solution:
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