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tejal777
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100% (01:40) correct 0% (00:00) wrong based on 2 sessions

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Value is closest to?
1/2
2/3
3/2
3
2



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\(((4/3).(2/3).(10/8))/((3/4).(4/5).(5/6))=\)
(10/9)/(3/6)=60/27=20/9 it is 2,2222.. and closest to 2. E.
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maliyeci
\(((4/3).(2/3).(10/8))/((3/4).(4/5).(5/6))=\)
(10/9)/(3/6)=60/27=20/9 it is 2,2222.. and closest to 2. E.
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Small typo the 10/8 should be 9/8. which will result in exactly 2 and let you pretty much cancel the top fraction to 1.
But yeh... I took same approach as Maliyeci.
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maliyeci
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Yes. You are right :oops:
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manojgmat
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incase we don't remember fractional equavalent during exam, then what is the alternative.. :-) other then actually solving?
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I don't remember many either (although I think I should learn more off by heart) but because its asking for approximates you should still be okay as long as your approximate fractions are close enough.
I used 8/10 instead of 5/6 because I didn't know the fraction but ended up with the same result.
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manojgmat
incase we don't remember fractional equavalent during exam, then what is the alternative.. :-) other then actually solving?
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* Well, you could split the decimal into smaller chunks and perhaps work off a simpler value (0.3333, 0.5, etc.) for which you may know the fraction (1/3, 1/2, etc.).

1.3333 = 1 + 0.3333 = 1 + 1/3 = the mixed fraction 1 1/3 = 4/3

0.6666 = 2 x 0.3333 = 2 x 1/3 = 2/3

0.8333 = 0.5 + 0.3333 = 1/2 + 1/3 = 5/6

1.125 = 1 + 0.125 = 1 + 1/8 = the mixed fraction 1 1/8 = 9/8

If one does not know the fraction for 0.125, then try this:

* Try a simple conversion of the decimal to a fraction.

We know that 0.125 is nothing but 125 divided by 1000
Thus, 0.125 = 125/1000 = 5/40 = 1/8
so (as above), 1.125 = 1 + 1/8 = 9/8

0.75 = 75/100 = 3/4

0.8 = 8/10 = 4/5

* What could you multiply the decimal with to get an integer or a simpler (to convert) decimal ?

Say, you have 0.26.
Using simple multiplication we know that 0.26 x 5 = 1.30 --> this should help to convert 0.26 into a fraction.

0.26 x 5 = 1.30 = 1 + 0.30 = 1 + 3/10 = 13/10
So, 0.26 x 5 = 13/10 --- which means --- 0.26 = 13/50

The same answer could also be arrived at doing this:
0.26 = 0.25 + 0.01 = 1/4 + 1/100 = 26/100 = 13/50

.. and of course, 0.26 is nothing but 26/100 i.e. 13/50 !!!

.. so, multiple ways out there! :)
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kudos gnet !EXACTLY what i was looking for..

Does anybody know where i can get a list of fractions to decimals to learn for GMAT?Got stuck in this quest. 'cos did'nt remember most of these..



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