Converting Fractions to Decimals

The easiest way to convert a fraction to a decimal is by PLUGGING IT INTO A CALCULATOR. If you would like to overachieve and wean yourself from your calculator, then the next easiest way to convert a fraction to a decimal is by finding a factor that will change the denominator to 100. Since percentages/decimals are done by dividing an amount by 100, getting the fraction to X/100 is the easiest way to convert. This way you can do the math in your head because whatever is over 100 is your percentage.

    To change 3/4 to a decimal, find a factor that will make the denominator (4)  equal to 100.   4 * 25 = 100

   3      (25)    = 75   =  75% =   .75

   4   * (25)      100

    To change  4/20 to a decimal, again, find the factor that will make the denominator (20) equal to 100.    20 *5 =100

     4      (5) =  20    =  20% =   .2

    20 *  (5)    100

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If you have a number that doesn't evenly go in to 100, then you must use a calculator!