Question

without finding the decimal representation,state wheather the following rational number are terminating decimals or non terminating decimals 1/12

Answer 1

:

Given that

27

−13

Here 13 and 27 no common factory

so 13 and 27 are co-prime

denominator 27=7×3

∴ the denominator is not of the form of 2

n

.5

m

∴ −

27

13

is non terminating decimals.