intro to percents
next lesson
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 or decimals represented per 100, stemming from the latin term 'per centum'.
- converting between percents and decimals involves moving the decimal point two places to the left or right, depending on the direction of conversion.
- changing 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.
- for exact conversions from fractions to decimals and subsequently to percents, knowledge of decimal equivalents is crucial.
- approximating percents from fractions involves strategic multiplication to get a fraction with a denominator close to 100, facilitating easier conversion and estimation.
chapters
00:00
understanding percents
01:16
converting percents and decimals
04:07
approximating percents from fractions