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Lesson 30 Section 2 WHAT PERCENT?We have seen: To change a number to a percent, multiply it by 100, and add the % sign. .125 = 12.5% (Lesson 4.) A fraction is a number, obviously. And to change a fraction to a percent, do the same. Lesson 27. Example 1. What percent of $24 is $2? Solution. In standard form: $2 is what percent of $24? That is: 2 out of 24 is what percent? $2, then, is one twelfth of the whole $24  which is 100%. We must therefore calculate one twelfth of 100%.
"12 goes into 100 eight (8) times (96), with 4 left over."




Certain fractions come up frequently, and the student should not have to multiply by 100%, but should know their percent equivalents. Example 2. 21 is what percent of 15? Solution. Note first that 21 is more than 15. Therefore it will be more than 100% of 15. (Lesson 17.) On reducing and expressing the improper fraction as a mixed number:
1 × 100% = 100%.
21 is 140% of 15. Please "turn" the page and do some Problems. or Introduction  Home  Table of Contents Copyright © 2020 Lawrence Spector Questions or comments? Email: themathpage@yandex.com 