Q2 of 54 Page 12

Without performing division, state whether the following rational numbers will have a terminating decimal form or non-terminating, repeating decimal form.


⇒ 7 and 10 are co-prime.


Now, we have to write the denominator 10 in the form of 2n5m where, n and m are the non-negative numbers.



10 = 2×5


∴ denominator is in the form 2n5m where, n = 1 and m = 1


Thus, is terminating decimal.


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Without performing division, state whether the following rational numbers will have a terminating decimal form or non-terminating, repeating decimal form.

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Without performing division, state whether the following rational numbers will have a terminating decimal form or non-terminating, repeating decimal form.

 2

Without performing division, state whether the following rational numbers will have a terminating decimal form or non-terminating, repeating decimal form.

 3

Write the following rationales in decimal form using Theorem 1.1.

(i)


(ii)


(iii)


(iv)


(v)