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Which of the following fractions is not a terminating decimal?

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Bunuel
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Which of the following fractions is not a terminating decimal? [#permalink] New post   15 Apr 2016, 01:14
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Which of the following fractions is not a terminating decimal?

A. 2/3
B. 3/4
C. 4/5
D. 7/8
E. 9/10
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A
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CV7585
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Re: Which of the following fractions is not a terminating decimal? [#permalink] New post   15 Apr 2016, 06:41
Which of the following fractions is not a terminating decimal?

A. 2/3
B. 3/4
C. 4/5
D. 7/8
E. 9/10

Answer A.

Every other choice can be reduced to a power of 5 and/or 2 and hence terminating.
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Abhishek009
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Re: Which of the following fractions is not a terminating decimal? [#permalink] New post   15 Apr 2016, 10:16
Bunuel wrote:
Which of the following fractions is not a terminating decimal?

A. 2/3
B. 3/4
C. 4/5
D. 7/8
E. 9/10


Definitely (A)

1/3 = 0.33333.......... { A non terminating decimal }

So, 2/3 = 0.666....{ A non terminating decimal }

Hence IMHO (A) :-D :lol:
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Re: Which of the following fractions is not a terminating decimal? [#permalink] New post   18 Apr 2016, 14:27
A. Non terminating decimal means that 2/3 = 0.66666 and so on.
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ronny123
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Re: Which of the following fractions is not a terminating decimal? [#permalink] New post   18 Apr 2016, 16:36
Pretty simple

2/3 = recurring fraction of 0.6666
3/4 = 0.75
4/5 = 0.80
7/8 = 0.875
9/10 = 0.90

Answer : A
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Re: Which of the following fractions is not a terminating decimal? [#permalink] New post   21 Apr 2016, 11:35
Here is the rule => if denominator has any other prime except 2 or 5 => the number will be non terminating
Smash A
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Re: Which of the following fractions is not a terminating decimal? [#permalink] New post   21 Apr 2016, 12:16
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stonecold wrote:
Here is the rule => if denominator has any other prime except 2 or 5 => the number will be non terminating
Smash A


Just to augment the discussion , please find here the decimal equivalent fractions -

Attachment:
Reciprocals.pdf [230.91 KiB]
Downloaded 120 times


Further please check this excellent link from Magoosh

https://magoosh.com/gmat/2012/gmat-math- ... -decimals/

I will say, any number which is a multiple of 2 or 5 (having only 2 or 5 or its multiple ) will not be a non terminating decimal ...

Example -

1/8 = 0.25 { Multiple of 2 }

However 1/6 = 0.166....... ( Multiple of 2 & 3 }

Since in 1/6 is a multiple of 3 (along with 2) it will be a non terminating decimal due to presence of 3 ; in 1/8 it is a a multiple of 2 it will be a terminating decimal.

Please feel free to revert in case of any doubt.. :P :lol: :-D :roll:
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Re: Which of the following fractions is not a terminating decimal? [#permalink]
21 Apr 2016, 12:16
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