## Introductory Algebra for College Students (7th Edition)

$0.15$
If we can write a fraction so that its denominator is one of 10,100, 1000,..., we can easily write it as a decimal number Using the fact that $20\cdot 5=100,$ $\displaystyle \frac{3}{20}=\frac{3\cdot 5}{20\cdot 5}=\frac{15}{100 }$ We write this as a decimal number with one digit after the decimal point: $= 0.15$