Q2 of 128 Page 20

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:

Let × = 0. 142857142857142…. …eq(1)


As there are 6 repeating digits. So we multiply by 106


106 × = 142857. 14285714…. …..eq(2)


Subtracting (1) from (2):


99999 × = 142857




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