## Basic College Mathematics (10th Edition)

12 mg to g Unit for the answer (g) is in numerator; unit being changed (mg) is in denominator so it will divide out. The unit fraction is $\frac{1 g}{1000 mg}$. Multiply 12 mg times to the unit fraction 12 mg * $\frac{1 g}{1000 mg}$ = 0.012 g