Aptitude - Problems on H.C.F and L.C.M - Discussion

Discussion Forum : Problems on H.C.F and L.C.M - General Questions (Q.No. 24)

Problems on H.C.F and L.C.M

24.

Which of the following fraction is the largest ?

Answer: Option

Explanation:

L.C.M. of 8, 16, 40 and 80 = 80.

7	=	70	;	13	=	65	;	31	=	62
8	=	80	;	16	=	80	;	40	=	80

Since,	70	>	65	>	63	>	62	, so	7	>	13	>	63	>	31
	80		80		80		80		8		16		80		40

So,	7	is the largest.
	8

Discussion:

49 comments Page 2 of 5.

Md. Khurshid said: 1 decade ago

I think @Hanumanth is right, because it is easiest way to check the correct answer that which fraction is larger or smaller.

Deepti said: 1 decade ago

The answer given by @Hanumanth is not applicable to all kinds of questions with same nature. I have tried. Its wrong.

Rakesh said: 1 decade ago

7/8=70/80, 13/16=65/80, 31/40=62/80 this answer how to come?

Asif said: 1 decade ago

I think @Vijaya is right, because it is easiest to check the correct answer that which fraction is larger or smaller.

Glory said: 1 decade ago

Hi guys,

Which one is correct in simple way am confused with your solutions, I need to understand how to use L.C.M in solving that question?

Sikha said: 1 decade ago

I don't understand how we are getting 7/8 = 70/80.

13/16=65/80.
31/40=62/80.

Please somebody explain me dis?

Arts ashokan said: 10 years ago

(7/8)*10 = 70/80;
(13/16)*5 = 65/80;
(31/40)*2 = 62/80;

Manik sharma said: 10 years ago

I don't understand how 7/8 = 70/80?

Pritam said: 10 years ago

How the LCM will be 80?

Tasik said: 10 years ago

@Manju.

It's not 60/9.

It's 63/9 = 7 (It also get 7).

Then which is largest?

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