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 SAT exam preparation.
- Percents are fundamentally fractions with a denominator of 100, derived from the Latin term 'per centum'.
- Converting between percents and decimals involves moving the decimal point two places to the left or right.
- Changing percents to fractions is straightforward, requiring the percent to be placed over 100 and simplified if necessary.
- Converting fractions to percents can be more complex and often requires converting the fraction to a decimal first.
- Approximating percents from fractions or division is a useful skill, with strategies provided for making close estimations.
Chapters
00:00
Understanding Percents
01:19
Converting Percents to Decimals and Vice Versa
02:38
Converting Fractions to Percents
04:07
Approximating Percents from Fractions