2. What is the difference between one-third and 0.333 ?
A 0
B $\frac{3}{1000}$
C $\frac{1}{3000}$
D $\frac{3}{10000}$
E $\frac{1}{30000}$
Solution
C

Expressed as fractions, one-third is $\frac{1}{3}$ and 0.333 is $\frac{333}{1000}$. Therefore, the difference between one-third and 0.333 is
$$
\frac{1}{3}-\frac{333}{1000}=\frac{1000}{3000}-\frac{999}{3000}=\frac{1}{3000} .
$$