Question

how to find out this rational number is terminating or non terminating in easy manner and in a clear step

if u give me the clear and correct answer l will give more points and l will follow u but if u wrong.....no wrong
$0.120120012000120000$
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Answer 1

The above number is neither terminating nor recurring. Therefore the given number is irrational.

Answer 2

it is simple by one step.

that is

if the denominator is big and numinator is small it is terminating.

if the denominator is small and numinator is big and the denominator is divisible by numinator it is non-terminating.

The give number is terminating decimal