Intro to Percents
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Percents and Ratios
Summary
The content provides a comprehensive guide on understanding and converting percents, decimals, and fractions, essential for GMAT prep.
- A percent is fundamentally a fraction, with the term originating from the Latin 'per centum', meaning per 100.
- Converting between percents and decimals involves moving the decimal point: two places to the left for percents to decimals, and two places to the right for decimals to percents.
- Changing from percents to fractions is straightforward by placing the percent over 100, while converting fractions to percents may require converting the fraction to a decimal first.
- Approximating percents from fractions or division is useful for the GMAT, with strategies including multiplying the numerator and denominator to get closer to a base of 100 for easier conversion.
- The content underscores the importance of understanding multiples of ten and recommends reviewing specific videos for foundational knowledge.
Chapters
00:00
Understanding Percents
01:17
Converting Percents to Decimals and Vice Versa
04:02
Approximating Percents from Fractions
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