One method would be to get the denominator into a more common form for dealing with decimal values. Notice the root dec- , the Latin root for "10" in the word decimal. This describes the fact that our common number system, the decimal system, is based on powers of 10. To prepare 7/2 for conversion to decimal, we should first make sure its denominator is some power of 10. To make the conversion, let's multiply it by 1 in the form of 5/5:
[tex] \frac{7}{2} \cdot \frac{5}{5} = \frac{35}{10} [/tex]
Or, as a mixed number:
[tex]3 \frac{5}{10} [/tex]
If you're familiar with how to read decimal values, "3 and 5 tenths" can be written in decimal form as 3.5.
