Arithmetic/Percents Decimals and Fractions

Conversions between percents, decimals and fractions
The perhaps easiest way to convert from:

Decimal to fractions is by simply moving the period over 2 and putting it over a 100

(ex) Express .50 as a fraction

.500  = 50.0 = 50/100 = 1/2    . >. (this means the moving of the dot)

usually the best way to set it all up is the following --                            | fraction | Decimal | percent | |   ?     |   ?     |   50%   |                               --            (move 2 to the right)    <--   x       -->(move dot over 2 to the right) (and put over 100)

When converting decimal to fraction                 When converting from decimal to percent always be sure it has 2 place to the                this always works right of the (.)                                    ? = 50.% if its not known, do the "reverse" (ex)  .5 = .50   = ? = 50                         .50 <--.             .-->   ---  ---                    100  100

When reading decimals, it is similar to verbalizing a fraction. For example, 0.2 is spelled out as "two-tenths", hence 2/10, which simplifies to 1/5. What if you had the real number 0.002? Same principle: "two-thousandths" implies 2/1000, which reduces to 1/500.

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