rules of % of whole prolblems
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| numbers % fraction part ________l__________ whole l | |||||
| numbers % fraction change ________l__________ whole l | |||||
| % increase ORIGINAL x( 1 + 100 ) | |||||
| % decrease ORIGINAL x (1- 100 ) | |||||
| From a fraction to a decimal | Divide the numerator by the denominator | ||||
| From a fraction to a percent | Divide the numerator by the denominator and move the decimal 2 places to the right. | ||||
| From a decimal to a fraction | Use the place value of the last digit in the decimal as the denominator, and put the decimal's digits in the numerator. | ||||
| From a decimal to a percent | Move the decimal place 2 spaces to the right. | ||||
| From a percent to fraction | Use the digits of the percent for the numerator and 100 for the denominator, then simplify. | ||||
| From a percent to a decimal | Move the decimal place 2 spaces to the left. |
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Created by:
abubblehead
on 2012-01-19