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Question

Find the rational number which is represented by the following decimal numbers : 0.11¯¯¯¯¯¯¯¯¯¯¯2233

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Solution

Let r=0.11¯¯¯¯¯¯¯¯¯¯¯2233, then 100r and 1000000r will be as follows:

100r=100×0.11¯¯¯¯¯¯¯¯¯¯¯2233=11.2233....

1000000r=1000000×0.11¯¯¯¯¯¯¯¯¯¯¯2233=112233.2233....

Now consider 1000000r100r as shown below:

1000000r100r=112233.223311.2233=112222.00

999900r=112222

r=112222999900

r=56111499950

Hence, the required rational number is 56111499950.

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