# solve this formula

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• March 1st 2013, 10:20 AM
pawii
solve this formula
.43-.73-.33= what and how to do it
• March 1st 2013, 10:54 AM
MacstersUndead
Re: solve this formula
Use a calculator or solve by hand. To solve by hand, I find that it helps to write each decimal into a fraction and then recall the fact that $(\frac{a}{b})^n = \frac{a^n}{b^n}$

For example, $(.4)^3 = (\frac{4}{10})^3 = \frac{4^3}{10^3} = \frac{64}{1000}$ The process is similar with the other decimals in this formula. then it's a simple matter of addition and subtraction of fractions.