### Theory:

General rule for representing decimals on a number line:
Step 1: Let us first find on which two integers where the decimal number lie.

Step 2: Divide the length between those two integers into ten equal parts.

Step 3: Move as many steps you want from the preceding integer to the right.

Step 4: You will reach the decimal number on the number line.
Locate $$0.5$$ on the number line.

Step 1: The decimal number $$0.5$$ lies between $$0$$ to $$1$$.

Step 2: Divide the length between $$0$$ to $$1$$ into ten equal parts.

Step 3: Move five-step to the right from $$0$$.

Step 4: The reached number in the number line is $$0.5$$.