Four rational numbers between -1 and -1/2
-1 and -1/2 are two rational numbers with a difference of 1/2. To find four rational numbers between them, we can divide this difference into four equal parts.

Step 1: Find the difference between the two numbers
The difference between -1 and -1/2 is 1/2.

Step 2: Divide the difference into four equal parts
To find four rational numbers between -1 and -1/2, we need to divide the difference (1/2) into four equal parts.
Each part will be 1/2 divided by 4, which is 1/8.

Step 3: Find the rational numbers
Starting from -1 and moving towards -1/2, we can add 1/8 successively to find the four rational numbers between them.
-1 + 1/8 = -7/8
-7/8 + 1/8 = -3/4
-3/4 + 1/8 = -5/8
-5/8 + 1/8 = -1/2
Therefore, the four rational numbers between -1 and -1/2 are -7/8, -3/4, -5/8, and -1/2. These numbers are rational because they can be expressed as a ratio of two integers.
By following these steps, we can easily find four rational numbers between any two given rational numbers.