1. The problem states that a string of length 10 meters is cut into equal pieces, each piece being $\frac{1}{2}$ meter long. 2. To find the number of pieces, we divide the total length of the string by the length of each piece. 3. Calculate the number of pieces: $$\text{Number of pieces} = \frac{10}{\frac{1}{2}}$$ 4. Dividing by a fraction is the same as multiplying by its reciprocal: $$\frac{10}{\frac{1}{2}} = 10 \times 2 = 20$$ 5. Therefore, the string is cut into 20 equal pieces. **Final answer:** There are 20 pieces of string.