What is the last nonzero digit to the right of the decimal point in the decimal expansion of $\frac{141}{400}$?
To find the decimal expansion of $\frac{141}{400}$, I can divide 141 by 400 using long division or a calculator. Alternatively, I can notice that $\frac{141}{400} = \frac{35.25}{100} = 0.3525$, which is easier to work with. Either way, I get the same decimal expansion: $0.3525$. The last nonzero digit to the right of the decimal point is 5. 