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% rules

rules of % of whole prolblems

QuestionAnswer
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.
Created by: abubblehead