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Expert's post 00:00

Question Stats: 80% (01:26) correct 20% (00:12) wrong based on 55 sessions
 Quantity A Quantity B $$\frac{4}{5} + \frac{2}{11}$$ $$1$$

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Quantity A = 4/5 + 2/11 = 0.8 + 2/11
Quantity B = 0.8 + 2/10

but 2/11 < 2/10 --> A < B

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Expert's post
Carcass wrote:
 Quantity A Quantity B $$\frac{4}{5} + \frac{2}{11}$$ $$1$$

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

Here's another approach...

Given:
Quantity A: $$\frac{4}{5} + \frac{2}{11}$$

Quantity B: $$1$$

Subtract $$\frac{4}{5}$$ from both quantities to get:
Quantity A: $$\frac{4}{5} + \frac{2}{11}$$

Quantity B: $$1 - \frac{4}{5} = \frac{5}{5}-\frac{4}{5}=\frac{1}{5}=\frac{2}{10}$$

Notice that both of our quantities have the same numerator of $$2$$.
Since the denominator in Quantity B is less than the denominator in Quantity A, we know that the fraction $$\frac{2}{10}$$ must be greater than the fraction $$\frac{2}{11}$$

Cheers,
Brent
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Brent Hanneson – Creator of greenlighttestprep.com
If you enjoy my solutions, you'll like my GRE prep course.  Re: 4/5 + 2/11   [#permalink] 17 Jan 2020, 10:44
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