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intro to percents

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summary
the content provides a comprehensive guide on understanding and converting percents, decimals, and fractions, essential for gmat prep. it emphasizes the importance of mastering these conversions to excel in the exam.
  • percents are fundamentally fractions or decimals divided by 100, originating from the latin term 'per centum'.
  • converting between percents and decimals involves moving the decimal point two places, with the direction depending on the conversion.
  • changing percents to fractions is straightforward by placing the percent over 100, while converting fractions to percents may require simplification or approximation.
  • approximating percents from fractions or division is crucial for the gmat, with strategies provided for making these estimations.
  • the content underscores the necessity of understanding decimal and fraction conversions, recommending additional resources for those unfamiliar with these concepts.
chapters
00:00
understanding percents
01:16
converting percents and decimals
04:07
approximating percents from fractions

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percents and ratios