2. (10 points) Jia, Yi, Bing, and Ding planted a total of 60 trees. It is known that, the number of trees planted by Jia is half of the rest three, the number of trees planted by Yi is one-third of the rest three, and the number of trees planted by Bing is one-fourth of the rest three. How many trees did Ding plant $\qquad$?
【Analysis】According to the problem, the number of trees planted by A accounts for $\frac{1}{3}$ of the total, B accounts for $\frac{1}{4}$, and C accounts for $\frac{1}{5}$. Therefore, D accounts for $1-\frac{1}{3}-\frac{1}{4}-\frac{1}{5}=\frac{47}{60}$ of the total. We can further solve the problem using the meaning of fraction multiplication.
【Solution】Solution: $60 \times\left(1-\frac{1}{1+2}-\frac{1}{1+3}-\frac{1}{1+4}\right)$
$$
\begin{array}{l}
=60 \times\left(1-\frac{1}{3}-\frac{1}{4}-\frac{1}{5}\right) \\
=60 \times \frac{13}{60} \\
=13 \text { (trees) }
\end{array}
$$

Answer: D planted 13 trees.
Therefore, the answer is: 13.