Question

state whether the given no.s has terminating or non terminating decimal expansion (a) 2/255 (b) 7/81 (c) 9/125 (d) 117/65 all have to answer
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Answer 1

Solution-

if a number in the form p by q then it will be terminating only if the prime factory of q are 2 and 5 unless not it will be non terminating decimal expansion if factor of q are other than 2 and 5 .

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