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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 GRE prep.
  • A percent is fundamentally a fraction or a way to express fractions and decimals per 100.
  • Converting between percents and decimals involves moving the decimal point two places to the left or right, depending on the direction of conversion.
  • Changing from percents to fractions is straightforward by placing the percent over 100 and simplifying if necessary.
  • Converting fractions to percents requires converting the fraction to a decimal first, which may involve approximation for non-standard fractions.
  • Approximating percents from fractions or division is a useful skill, especially when exact conversions are not feasible.
Chapters
00:00
Understanding Percents
01:17
Converting Percents to Decimals and Vice Versa
04:02
Approximating Percents from Fractions

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Percents and Ratios