Q. 2 D5.0( 2 Votes )

Following real numbers are expressed in decimal form. Find whether they are rational or not. If rational. express them in form p/q. Comment on factors of q:

0. 090909….. =

Answer :

Let × = 0. 09090909….. ……eq(1)

As there are 2 repeating digits. So we multiply by 102

100 × = 9. 09090909…. ……..eq(2)

Subtracting (1) from (2):

99 × = 9

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