Question

Without actual division find weather 7/128 is a terminating decimal or not

Answer 1

Step-by-step explanation:

When we prime factorise the denominator and get the number only to be divisible by 2, 5 or both, then we say that the rational number has terminating decimal expansion.

128 = 2⁷ which is only divisible by 2.

Therefore 7/128 is a terminating decimal.

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Answer 2

When we prime factorise the denominator and get the number only to be divisible by 2, 5 or both, then we say that the rational number has terminating decimal expansion. 128 = 2⁷ which is only divisible by 2. Therefore 7/128 is a terminating decimal.