In this class, we are studying common fractions, numbers represented as the ratio of two non-zero integers. We are not covering decimal fractions, fractions with denominators that are always a power of 10. If you need to review decimal fractions, go to Chapter 4 of your textbook. Now that almost everyone carries a calculator in their mobile devices and these only produce answers as decimal fractions, why is it still important to understand how to use common fractions? For example, what is lost when the division of 1 by 3 is reported as 0.3, 0.33, or 0.33333 instead of ? Can you think of other examples where always using decimal fractions may not be good practice