Question

without actual division,find which of the following rationals are terminating decimals 5/12​

Answer 1

Answer:

5/12 is non terminating because it's decimal expansion ends

${2}^{2} \times 3$

to be terminating it's reminder should be in the form

${2}^{n} \times {5}^{m}$

therefore it is non terminating

hope you have got some help

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Answer 2

The answer is the attachment.

The question is incomplete , so you can solve the other problems this way .

• First you split the denominator like in the attachment ,then check if it is divisible by the number in the attachment.
• if the denominator is of the form 2^n×5^n , then you don't need to check if the numerator is divisible or not.

Hope you understood