Lesson: QC Strategy - Approximation

Comment on QC Strategy - Approximation

3003/9009=1/3 then 3003/9047 should be more then 1/3 how it is less than 1/3
greenlight-admin's picture

To show why making the denominator bigger makes the value of the fraction smaller, consider this extreme example with a super huge denominator:
This fraction simplifies to 1/100000000, which is MUCH smaller than 1/3.

For more on this strategy see https://www.greenlighttestprep.com/module/gre-arithmetic/video/1067 (the related concept starts at 3:00)

Thanks for this!

I am enjoying learning your tricks... I am planning on barely using the calculator if not at all... Thank you..
tahmina.mm's picture

your tricks are just amazing.

very helpful tips and tricks..makes life so easy...thank you so much

Learned something new today! thanks
greenlight-admin's picture

Glad you liked the lesson!


Hello sir,
I am really finding your videos useful but I am not getting how to access all the questions related to one particular topic.Kindly guide me.
greenlight-admin's picture

Under most video lessons (like the video above), have a Reinforcement Activities box (like the one above) with links to practice questions related to the concepts covered in the video lesson.

Here's a better example: https://www.greenlighttestprep.com/module/gre-arithmetic/video/1071

Does that help?


Brilliant! I am very pleased that I found...I need to kick ass on this exam
greenlight-admin's picture

Glad you like it


Very educative, please I want find out how 2006/5987 is greater than 1/3
greenlight-admin's picture

We know that 2006/6018 = 1/3
So, 2006/5987 must be GREATER THAN 1/3

For more on this strategy, watch https://www.greenlighttestprep.com/module/gre-arithmetic/video/1067 (starting at 2:57)


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