Q. 225.0( 1 Vote )

Which of the following numbers have terminating decimal expansion and why?


Answer :

Here, the denominator is 625.

625 = 5 × 5 × 5 × 5 × 20


We can see that that 625 contains 5 as its prime factors.


Also, 156 = 2 × 2 × 3 × 13


So, g. c. d(156, 625) = 1


Therefore,
has a terminating decimal expansion.


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